FoundationDocument 1 of 21From the GFX 100S II field guide
GFX 100S II
Settings Overview
How to use this document
Read this first for the assumptions, limits, and checks behind the menu settings.
Philosophy: What These Settings Are For
The GFX 100S II is not a fast camera pretending to be a medium format. It is a deliberate instrument. Its 102 MP sensor, 8-stop IBIS, and pixel-shift capability exist to produce images of extraordinary density and tonal richness — but only when the camera is set up to operate in service of that output, not in spite of it.
This guide is opinionated. It will tell you what to set and why, not just list options. The underlying principle throughout is: the camera captures; the sensor extracts; Lightroom renders. In-camera processing decisions that belong to the RAW workflow should be removed from the equation entirely. The camera's job is to give you the richest possible RAW file and a live view accurate enough to make creative decisions.
One more principle: complexity at rest, simplicity in action. The correct time to configure the camera is before you leave — not in the field. The goal of this guide is that when you raise the GFX to your eye, the camera has already anticipated your intentions.
Exposure
Exposure is where the document must become simple. The GFX 100S II rewards careful exposure placement, not superstition. This section keeps the exposure rules in one place so they do not fragment across shutter, bank, and field-use sections.
Every setting in this guide flows from one foundational principle: the histogram is not the RAW file. The histogram displayed on the GFX 100S II is generated from the embedded JPEG preview, not from the raw sensor data. It reflects the film simulation, tone curve, and colour rendering you have configured — not the actual luminance values the sensor captured. Understanding this gap is the most important technical insight you can have as a GFX shooter.
ETTR vs Highlight Protection — The GFX Position
Expose to the right (ETTR). This is the correct default for the GFX 100S II, and it is not a compromise position. The sensor's shadow noise floor is so low that lifting underexposed shadows costs almost nothing in quality. Blown highlights, by contrast, lose gradation permanently beyond the RAW recovery range. ETTR fills the tonal bucket as completely as possible without genuine clipping, then Lightroom's Highlights recovery extracts the structure.
D SCREEN SETTING → DISP. CUSTOM SETTING and check the box for LIVE VIEW HIGHLIGHT ALERT. You must also ensure you are using the Custom Display mode on your screen/EVF to see them.Highlight Warning Calibration
The GFX's highlight clipping warnings (blinkies) fire based on the JPEG preview, not the RAW file. This means they are biased — they warn too early. You can use this bias to your advantage: if the blinkies are firing on a bright sky, you are probably 1–2 stops below ETTR. Push exposure up until the blinkies fire on 10–15% of the brightest specular pixels, then check the RAW in LRC. You will find recoverable data almost every time.
When to Deliberately Underexpose
ETTR is the default — but there are specific situations on the GFX where deliberate underexposure is correct. First: scenes with specular highlights that have no recoverable detail (polished metal, direct sun reflection on water). These will clip at any reasonable exposure — push them to clip cleanly rather than rendering them as clipped blobs with halo artefacts. Second: intentional low-key creative work, where lifting shadow gradation to ETTR destroys the tonal atmosphere you are creating. In these cases, underexpose intentionally and accept the noise trade-off in shadows.
Stability & Shutter
Exposure decides how much data you capture. Shutter speed decides whether that data survives contact with the real world. On a 102 MP sensor, micro-movement is not a minor flaw; it is often the difference between a file that sings and a file that merely looks acceptable on a screen.
STILL PHOTO DISPLAY → MENU/OK → A SHOOTING SETTING. Performance behavior lives in STILL PHOTO DISPLAY → MENU/OK → D POWER MANAGEMENT.102 MP Shutter Speed Doctrine
The 1/focal length rule for handheld shutter speeds was derived for lower-resolution cameras. At 102 MP, small camera movement can become visible blur. The effective minimum safe handheld shutter speed on the GFX 100S II is higher than the legacy rule suggests.
| Lens | Legacy Rule | GFX 102MP Baseline | Critical Sharpness |
|---|---|---|---|
| GF 20-35mm at 20mm | 1/20s | 1/60s | 1/120s |
| GF 20-35mm at 35mm | 1/35s | 1/100s | 1/200s |
| GF 45-100mm at 45mm | 1/45s | 1/125s | 1/250s |
| GF 45-100mm at 100mm | 1/100s | 1/250s | 1/500s |
| GF 100-200mm at 100mm | 1/100s | 1/250s | 1/500s |
| GF 100-200mm at 200mm | 1/200s | 1/500s | 1/1000s |
| GF 80mm f/1.7 | 1/80s | 1/200s | 1/400s |
With IBIS active: The GFX 100S II's 8-stop IBIS compensates for camera motion, not subject motion. At slow shutter speeds, IBIS keeps the camera steady — but if your subject breathes, turns, or blinks, there is no IBIS compensation for that movement. The table above governs the minimum for static subjects. For moving subjects, the minimum is determined by the subject's angular velocity across the frame, not the focal length.
Base Configuration: Universal Settings Across All Streams
These settings live in every custom bank identically. They define the camera's base behaviour regardless of subject. Change them only when the job clearly requires it.
Rule for this section: this is the base configuration you set once, save into custom settings, and only depart from with intent. If a setting appears later inside a stream bank, it is a deliberate override rather than a forgotten inconsistency.
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Image QualityThe only acceptable setting | RAW | Set |
| 2 | RAW Recording Type | LOSSLESS | Set |
| Why Lossless, not Compressed: Lossless compression is a reversible algorithm that reduces file size to roughly 30–60% of uncompressed with zero loss of data. Compressed (lossy) reduces files further but uses a non-reversible algorithm. At 102 MP with 16-bit depth, lossy compression is unacceptable — the artefacts are visible at print size. | |||
| 3 | Output Depth16-bit only available in STILL IMAGE and PIXEL SHIFT modes | 16-bit | Set |
| Why 16-bit: 16-bit gives 65,536 tonal steps per channel versus 14-bit's 16,384. That does not increase dynamic range by itself; it increases tonal precision within the range the sensor already captures. Lightroom Classic processes 16-bit RAF natively. The file-size increase is justified when you want the smoothest possible tonal transitions in large prints or heavy post work. | |||
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Film Simulation | PROVIA/STANDARD | Set |
| Why Provia for the preview: Provia is Fujifilm's most neutral simulation — accurate colour, moderate contrast, no extreme saturation shifts. It gives you a preview that represents what the RAW data actually looks like, which helps you make accurate exposure and composition decisions. Override this per-stream for specific creative needs (see stream sections). | |||
| 2 | Tone Curve — Highlights | 0 | Set |
| 3 | Tone Curve — Shadows | 0 | Set |
| Why zero tone curve: In-camera tone curve processing is embedded in the JPEG preview, not the RAW data. Setting it to anything other than zero means the live view and histogram are showing you a tonally altered version of the scene. A ±2 shadow lift looks like you have more shadow detail in the field than the RAW file actually contains — a dangerous illusion. | |||
| 4 | Sharpness | 0 | Set |
| 5 | Clarity | 0 | Set |
| 6 | Colour | 0 | Set |
| 7 | High ISO NR | −4 | Set |
| Why −4 on High ISO NR: In-camera NR affects the preview JPEG. At −4, the preview shows you the actual noise state of the file. This forces accurate exposure discipline — if the preview looks noisy, the RAW file is noisy and you need more light, not more in-camera smoothing. You want to see reality. | |||
| 8 | Colour Chrome Effect | OFF | Set |
| 9 | Colour Chrome FX Blue | OFF | Set |
| 10 | Smooth Skin Effect | OFF | Set |
| 11 | Long Exposure NR | OFF | Set |
| Why OFF: Long Exposure NR doubles the time to write each exposure — a 30-second exposure takes another 30 seconds to process. For RAW files, this processing is done in Lightroom using AI Denoise. In-camera NR at long exposures adds nothing to the RAW file and costs field time. | |||
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Dynamic Range | 100% | Set |
| Why 100%, always: Dynamic Range 200% and 400% force the camera to raise ISO (minimum ISO 160 for 200%, ISO 320 for 400%) and compress the highlight region in-camera. For RAW files, this is usually redundant — the sensor already captures broad highlight latitude in the RAF. Expanding Dynamic Range in-camera raises your ISO floor, increases noise, and usually provides no benefit that Lightroom cannot handle more flexibly in post. | |||
| 2 | D Range Priority | OFF | Set |
| Why OFF: When D Range Priority is anything other than OFF, it overrides and adjusts Tone Curve and Dynamic Range automatically. For RAW shooters this creates unpredictable preview behaviour and, critically, raises the minimum ISO. You lose control of the sensor's base ISO exposure. Keep it OFF and recover highlights in Lightroom. | |||
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Colour Space | Adobe RGB | Set |
| Why Adobe RGB for RAW: The colour space setting affects the embedded JPEG preview, not the RAW data itself. Adobe RGB gives a wider gamut preview, making colour decisions in the viewfinder more accurate. sRGB clips saturated colours in the preview that the RAW file actually contains. | |||
| 2 | Lens Modulation Optimizer | ON | Set |
| Always ON: LMO compensates for diffraction at small apertures and peripheral focus falloff — both significant on a 102 MP sensor where diffraction becomes visible at f/11+. It applies corrections that are specific to GF lens optical formulas. There is no performance cost and the image quality benefit at f/8–f/16 is meaningful at print resolution. | |||
| 3 | Number of Focus Points | 425 POINTS (17×25) | Set |
| Why 425 points: The 425-point grid gives maximum positional precision for single-point AF. On a 102 MP sensor, the difference between a focus point at the exact subject and one 2mm away is visible in the final print. Use 425 points for all precision work. The 117-point grid is only useful if response speed is more critical than precision. | |||
| 4 | AF Illuminator | OFF | Set |
| Why OFF: The AF illuminator broadcasts your presence. For portrait and street work it's intrusive. For landscape it's irrelevant — subjects don't move. Use manual focus or pre-focus in low light. If needed, enable per-session only. | |||
| 5 | Store AF Mode By Orientation | ON | Set |
| Why ON: This stores the focus area separately for landscape and portrait orientation. When you rotate the camera for a portrait-orientation shot, the focus point doesn't shift to an inappropriate position. Particularly valuable for portrait work where eye position relative to frame differs completely between orientations. | |||
| 6 | Pre-AF | OFF | Set |
| Why OFF: Pre-AF continuously adjusts focus even when the shutter button is not pressed. This drains the battery measurably and creates continuous sensor and motor activity. On a deliberate medium format system, you engage focus intentionally. Pre-AF suits event cameras, not the GFX. | |||
| 7 | Auto Update Custom Setting | DISABLE | Critical |
| Why DISABLE: With ENABLE, any change made while in a Custom Bank is automatically saved to that bank. This silently corrupts carefully configured banks. DISABLE means changes must be saved explicitly — protecting bank integrity. The slight inconvenience of manual saving is worth the protection. | |||
Custom Bank Architecture
The GFX 100S II has six custom banks (C1–C6) accessible directly from the mode dial. Each bank stores the full set of shooting menu parameters — AF mode, drive mode, shutter type, IS mode, metering, ISO, film simulation, everything. Think of each bank as a complete camera persona, not just an ISO or AF preference.
The banks should read like chapters with different operational assumptions, not like random presets. C1–C3 are daily working modes. C4–C6 are specialist modes you enter for a reason and leave with equal intention: C4 for indoor sport timing, C5 for architectural geometry and focus stacking, C6 for pixel-shift capture.
H IMAGE QUALITY SETTING → EDIT/SAVE CUSTOM SETTING, select the target bank (C1–C6), and choose SAVE CURRENT SETTINGS. With Auto Update Custom Setting set to DISABLE, your banks are protected until you explicitly save changes. Name each bank: in the same menu, select the bank and choose EDIT CUSTOM NAME.The discipline of this architecture: rotate the mode dial before lifting the camera. The act of selecting the correct bank is the act of declaring your intent. It forces a momentary pause and a deliberate choice. That pause is often the difference between a considered medium format image and a snapshot made with an expensive camera.
Muscle Memory: Custom Buttons & Q Menu
The Custom Banks handle your macro-decisions (changing from Landscape to Street). Your Custom Buttons handle your micro-decisions (adapting to a sudden change within that stream). The goal is to never open the main menu while looking through the viewfinder.
Access note: all Fn assignments and quick-menu edits begin from the still-photo shooting display: MENU/OK → D BUTTON/DIAL SETTING for Fn behavior, and MENU/OK → D BUTTON/DIAL SETTING → EDIT/SAVE QUICK MENU for Q-menu layout.
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Fn1 ButtonTop plate, next to shutter | SUBJECT DETECTION ON/OFF | Set |
| The most frequently toggled setting. When shooting Street (C3) or Portrait (C2), Subject Detection sometimes grabs the wrong element. Pressing Fn1 instantly kills the AI, reverting to your underlying AF box so you can manually take control. Press again to restore AI. | |||
| 2 | Fn2 ButtonFront of camera, near lens mount | AF MODE | Set |
| Allows rapid switching between Single Point (precision), Zone (street movement), and Wide/Tracking. | |||
| 3 | Fn3 ButtonTop right, near screen | SHUTTER TYPE | Set |
| Instantly toggle between Mechanical (for flash/tripod), EFCS (portrait), and Electronic (silent street). Essential when your C3 bank is set to Electronic, but you encounter flickering LED lights and need to quickly revert to Mechanical. | |||
| 4 | D-Pad UP | AF RANGE LIMITER | Set |
| For landscape work (C1). Toggle your 3m–∞ preset on to stop the lens hunting through the macro range. | |||
| 5 | D-Pad DOWN | IS MODE | Set |
| The fastest way to verify or toggle IBIS when moving the 20-35mm or 80mm onto and off a tripod. If an OIS zoom is mounted, this check is only half the job: the GF 45-100mm and GF 100-200mm also require a physical barrel-switch check. | |||
The Optical Triangle: Lens-Specific Behaviour
These lenses are not interchangeable tools. Each imposes a different discipline on framing, focus, and exposure. The camera must anticipate those differences before the shutter is pressed. The following recommendations assume intentional lens choice, not reactive zooming.
Optically excellent across the frame. Inherently deep depth of field at 20mm means focus bracketing is rarely needed except for extreme foreground elements within 1m. Handheld capability is strong — IBIS is highly effective at wide angles because the angular amplification of camera movement is minimal.
One of the two OIS zooms in the system. Both the lens OIS switch and camera IS Mode must be OFF on a tripod. Forgetting either is the most common IQ failure point in landscape work with this lens.
Use when the picture is made by distance: ridgelines, woodland layers, façades across water, sport from restricted positions, or static subjects that remain too loose at 100mm. It extends the 45-100mm logic rather than replacing it. On a tripod, the physical OIS switch and camera IS Mode must both be OFF; on C4 monopod work, both should be ON.
DC motor AF — deliberate, not fast. Resolves beyond what phase-detect AF-C tolerates for critical still portrait work. At f/1.7 on 102 MP, depth of field is millimetre-scale. Subject motion at f/1.7 requires minimum 1/200s regardless of IBIS.
Aperture Sweet Spots — The Hard Truth at 102 MP
Diffraction on the GFX 100S II doesn't announce itself as "soft" — it announces itself as mushy. Texture collapses before sharpness loss becomes obvious. At f/11, foliage micro-detail, fabric weave, and skin pores all degrade measurably at full resolution. This is not a theoretical concern — it is visible in LRC at 1:1 on a calibrated display. The operational consequence is that stopping down for depth of field is no longer the correct tool: focus bracketing (shooting at the optimal aperture and stacking) is.
| Lens | Optical Sweet Spot | Diffraction Visible | Use Focus Bracketing Instead |
|---|---|---|---|
| GF 20–35mm F4 | F5.6 – F8 | F11+ | Extreme foreground only (subject <1m from lens) |
| GF 45–100mm F4 | F5.6 – F8 | F11+ | Landscapes requiring front-to-back sharpness |
| GF 100-200mm F5.6 | F5.6 – F8 | F11+ | Long-compression landscapes or distant detail planes requiring crisp separation |
| GF 80mm F1.7 | F2 – F4 | F11+ | Stack portraits only for product/still life; never for person |
Pixel Shift: Which Lens Actually Deserves It
Pixel Shift uses the IBIS mechanism to move the sensor by precisely half a pixel between frames. This creates a parallax shift — as the sensor physically moves, the geometric relationship between near and far elements in the scene changes slightly. Wide-angle lenses amplify this effect because the relative displacement of near objects against the background is proportionally larger. The result is misalignment in near-foreground elements that Pixel Shift Combiner cannot fully resolve.
| Lens | Pixel Shift? | Reason |
|---|---|---|
| GF 20–35mm F4 | Not recommended | Wide-angle parallax shift causes misalignment in any near-field element. Only works on flat subjects (artwork, maps) with zero foreground depth. |
| GF 45–100mm F4 | Selective — 60mm+ | At longer focal lengths, parallax is reduced. Usable for flat or distant subjects from 60mm upward. Still avoid near foreground. |
| GF 100-200mm F5.6 | Prudent — distant static subjects | Useful when the subject is remote, flat enough, and benefits from stronger compression than 100mm. Barrel OIS and camera IS Mode must both be OFF. |
| GF 80mm F1.7 | Yes — optimal lens | The 80mm's flat field, optical symmetry, and longer focal length minimise parallax. For fine art portraiture, still life, and product work, this is the system's Pixel Shift prime. |
Bank-to-Lens Alignment
Each custom bank in this guide is pre-aligned to a primary lens. When you rotate the mode dial, you are not just selecting a shooting mode — you are declaring the optical instrument you intend to use. The AF mode, minimum shutter speed, IS mode, and film simulation preview are all calibrated for that lens's specific behaviour. This is how the GFX stops feeling slow.
| Bank | Primary Lens | Stream | Key Calibration |
|---|---|---|---|
| C1 | GF 20–35mm F4 | Landscape | IS OFF (tripod), Mechanical shutter, AF-S single point, f/5.6–f/8 |
| C2 | GF 80mm F1.7 | Portrait | AF-C Eye Detection, EFCS, Min SS 1/200s, IS CONTINUOUS |
| C3 | GF 45–100mm F4 | Street / Doc | Electronic shutter, AF-C Zone, Min SS 1/400s at 100mm, IS CONTINUOUS |
| C1/C4/C5/C6 | GF 100-200mm F5.6 | Long reach / compression | Use as the prudent longer-reach extension when 100mm is too loose; OIS OFF on tripod and Pixel Shift, OIS ON for C4 monopod work |
The Landscape Shooter's Assumptions
You have a tripod, or you should. You are not chasing motion. You want the maximum data the sensor can produce. Your shutter speed is determined by the scene, not by a burst rate. The shot you want is one shot made correctly, not forty shots made fast.
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Shooting Mode | M (Manual) | Set |
| Why Manual: Landscape photography demands absolute control over shutter speed and aperture. Auto modes create inconsistency across bracketed or interval sequences. In Manual, the histogram tells you what you have; your judgment determines what you want. Use the GFX's live histogram, not the camera's meter, as your primary reference. | |||
| 2 | ISO | 100–200 base | Set |
| Never use Auto ISO for landscape. Auto ISO introduces variable noise across a static scene. Fix it at 100 or 200 and let the tripod handle long exposures. ISO 200 has negligible difference from 100 and gives slightly more shutter speed flexibility without visible noise penalty. | |||
| 3 | Metering | MULTI | Set |
| Why Multi: In Manual mode with live histogram, metering is informational only. Multi metering gives the most complete luminance analysis of the scene. But the histogram — not the meter — is the decisive reference. Enable the live histogram display (DISP. CUSTOM SETTING) and expose for the scene, not the meter. | |||
| 4 | Interlock Spot AE & Focus Area | OFF | Set |
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Focus Mode Selector | S (AF-S) | Set |
| AF-S for landscape: Subjects are static. AF-S locks focus precisely at the desired distance. Focus, lock, verify with focus magnifier, shoot. If focus speed were relevant, you would not be on a tripod. Use the focus lever to position the single-point precisely on the sharpest element of the scene. | |||
| 2 | AF Mode | SINGLE POINT | Set |
| 3 | Face/Eye Detection | OFF | Set |
| 4 | Subject Detection | OFF | Set |
| 5 | Release/Focus Priority (AF-S) | FOCUS | Set |
| Why Focus priority: In landscape work, if the camera has not confirmed focus, the shutter should not release. A marginally out-of-focus landscape at 102 MP is unusable at large print sizes. Focus priority prevents the camera from firing on an uncertain focus lock. | |||
| 6 | AF+MF | ON | Set |
| Why AF+MF: After AF-S locks, you can fine-tune focus by turning the focus ring without re-engaging AF. This is essential for hyperfocal work and for placing the exact plane of focus on the critical element. Rotate to AF-lock, then turn the focus ring a fraction to refine. | |||
| 7 | MF Assist | FOCUS PEAK HIGHLIGHT | Set |
| 8 | Focus Check (Magnifier) | ON | Set |
| 9 | AF Range Limiter | OFF (or PRESET1 for landscape) | Set |
| Why a range limiter for landscape: Setting a minimum focus distance of 3m–∞ for general landscape work eliminates hunting through the close-focus range. AF locks faster on distant subjects. Configure PRESET1 for your typical working range and toggle with a function button. | |||
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Shutter Type | MECHANICAL | Set |
| Why Mechanical: On a tripod, mirror slap and mechanical vibration are managed by cable release and live view (no mirror on GFX, but the shutter mechanism itself can introduce vibration). The mechanical shutter on the GFX 100S II is precise and extremely low-vibration. The electronic shutter has no advantage on a stable tripod and introduces rolling shutter risk. Exception: use Electronic for very long exposures where mechanical shutter actuation at the start of a multi-second exposure could create vibration. | |||
| 2 | Drive Mode | STILL IMAGE (single) | Set |
| 3 | Self Timer | 2s (when no cable release) | Set |
| Why 2-second self-timer: Eliminates shutter button vibration on tripod. Use a remote release (RR-100 or compatible) when available. The 2-second delay is enough for the camera to settle after button press. Do not use 10-second for landscape — it's unnecessarily slow. | |||
| 4 | Save Self-Timer Setting | ON | Set |
| 5 | Flicker Reduction | OFF | Set |
| Outdoors. No artificial light flicker. Leave OFF. Flicker Reduction increases write time between frames. | |||
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | IS Mode (on tripod) | OFF | Set |
| Why OFF on tripod: IBIS actively moves the sensor to compensate for hand movement. On a tripod, there is no movement to compensate for — IBIS will search for vibration that isn't there and introduce micro-movement itself. Turn IBIS off on a tripod for maximum resolution. This is the single most common mistake landscape photographers make with stabilised cameras. | |||
| 2 | IS Mode (handheld) | CONTINUOUS | Set |
| 3 | OIS zooms: Dual IS Off Required | Lens OIS switch OFF + Camera IS OFF | Set |
| This is the OIS-zoom failure point in this system. Both the GF 45-100mm F4 and the GF 100-200mm F5.6 have a physical OIS switch on the barrel. On a tripod, both the lens OIS barrel switch AND the camera's IS Mode setting must be set to OFF. If either is left active, the two stabilisation systems interact — searching for movement that doesn't exist, generating the micro-vibration they're trying to prevent. The effect is a subtle but real loss of resolution that is difficult to diagnose in the field. Build the physical habit: mount the lens, look for the OIS switch, set it off, confirm IS Mode OFF in the camera menu. | |||
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Film Simulation | CLASSIC CHROME | Set |
| Why Classic Chrome for landscape preview: Classic Chrome reduces saturation and slightly compresses highlights — giving a preview that closely approximates how a landscape RAW file looks after careful LRC processing. Velvia's vivid saturation creates a misleading preview that makes the scene look more resolved than it is. Classic Chrome keeps you honest about what you're actually capturing. | |||
| 2 | White Balance | DAYLIGHT (5550K) or CUSTOM | Set |
| Why fixed WB for landscape: Auto white balance drifts between exposures, making bracketed sequences inconsistent. Set a fixed Kelvin temperature appropriate to the light (5500–6500K for daylight, 4500–5000K for overcast). This creates consistent previews and a reliable starting point in Lightroom. The RAW file retains all colour information regardless, but consistency aids workflow. | |||
| 3 | Grain Effect | OFF | Set |
The Portrait Shooter's Assumptions
Your subject can move. Their eye is the critical focus point. You need reliable face and eye detection that doesn't interfere with your compositional intent. Depth of field is shallow, which means the difference between a sharp and a missed shot is measured in millimetres of focus accuracy. Skin tone rendering and the quality of out-of-focus transitions matter as much as sharpness.
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Shooting Mode | A (Aperture Priority) | Set |
| Why Aperture Priority: In portrait work, the aperture is a creative decision — it defines depth of field and bokeh character. The shutter speed is a technical constraint. Aperture Priority with carefully set minimum shutter speed and Auto ISO lets you maintain the chosen aperture while the camera handles the rest. Set minimum SS above 1/(2×focal length) for handheld work. | |||
| 2 | ISO | AUTO ISO | Set |
| 3 | Auto ISO Max Sensitivity | ISO 3200 | Set |
| Why 3200 max: The GFX 100S II delivers excellent files to ISO 3200, and with Lightroom's AI Denoise, ISO 3200 files are practical. Capping at 3200 prevents the camera from reaching ISO 6400+ where noise begins to affect skin detail at 102 MP. Adjust down to 1600 in good light, up to 6400 for dark interior portrait work. | |||
| 4 | Min Shutter Speed (Auto ISO) | 1/200s | Set |
| Override AUTO for the 80mm. AUTO min shutter speed targets roughly 1/focal length — approximately 1/100s for the 80mm. That is insufficient at f/1.7 on a 102 MP sensor. A subject who blinks, breathes, or shifts 5mm during a 1/100s exposure will show micro-motion blur at the iris and eyelash at full resolution. Set a fixed 1/200s minimum. The f/1.7 aperture provides such abundant light that ISO will remain low (typically ISO 100–400 in any reasonable portrait environment). The cost is negligible; the gain in critical sharpness at the eye plane is meaningful. | |||
| 5 | Metering | MULTI | Set |
| Multi with Face Detection: When Face/Eye Detection is active, the metering system prioritises the detected face for exposure calculation — regardless of the metering mode technically selected. Multi with face detection active gives you intelligent exposure centred on the subject's skin tone. | |||
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Focus Mode | C (AF-C) | Set |
| Why AF-C for portrait: Even in a controlled portrait session, subjects move — they breathe, shift weight, turn their head. AF-C tracks these movements continuously. The GFX 100S II's phase-detection AF system is precise enough for portrait work in AF-C mode. AF-S is appropriate only for fully static studio work with zero subject movement. | |||
| 2 | 80mm DC Motor — Critical Note | AF-S for still subjects | Set |
| The GF 80mm F1.7 moves glass with a DC motor — not a linear motor. DC motors are precise but deliberate. The lens focuses accurately but does not have the instant-response character of the LM-equipped zooms in this system. In AF-C at f/1.7, the focus tracking loop can introduce subtle jitter — the plane of focus oscillates slightly around the target. At 102 MP, this oscillation is visible at print scale even when it looks fine at 100% on screen. For critical still portrait work (controlled session, subject relatively static), switch to AF-S + Single Point placed precisely on the near eye. Reserve AF-C for sessions where subject movement makes AF-S impractical. | |||
| 3 | AF Mode | WIDE/TRACKING | Set |
| Why Wide/Tracking with Face Detection: Wide/Tracking allows Face and Eye Detection to control AF point selection. The camera identifies the face, locks the eye, and tracks it across the frame. You retain compositional freedom — you don't need to centre the subject to lock focus, then recompose. | |||
| 4 | Face/Eye Detection | FACE DETECTION ON · EYE AUTO | Set |
| Eye Auto vs Eye Priority: Eye Auto lets the camera decide which eye to prioritise based on which is closer to the lens and more prominent in the frame. For most portrait work this is correct. Use Right Eye Priority or Left Eye Priority only when you are consistently shooting a specific compositional style where one eye is always dominant. | |||
| 5 | AF-C Custom Settings | SET 2 | Set |
| Why Set 2: SET 2 is optimised for subjects that move at a moderate pace with some acceleration changes — ideal for portrait subjects who turn, lean, and gesture. Fujifilm's preset uses Tracking Sensitivity 3, Speed Tracking Sensitivity 0, and Zone Area Switching CENTER. That combination is less reactive than the sport-oriented presets and better suited to controlled front-to-back portrait movement at f/1.7. | |||
| 6 | Release/Focus Priority (AF-C) | RELEASE | Set |
| Why Release priority for portrait: At f/1.7 with a tracking subject, there are moments when the eye is detected but AF confirmation is marginal. Release priority fires the shutter, giving you the frame. At 102 MP, a slightly soft shot of the perfect expression is often preferable to a rejected shot. Review and select in post. | |||
| 7 | Store AF Mode By Orientation | ON | Set |
| Stores separate focus area positions for landscape and portrait orientation. When you rotate the camera, the eye detection doesn't jump to a stored position inappropriate for the new orientation. | |||
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Shutter Type | E-FRONT CURTAIN SHUTTER | Set |
| Why E-Front Curtain: The Electronic Front Curtain Shutter eliminates the mechanical jerk of the first shutter curtain opening, reducing vibration at the start of the exposure — critical when shooting handheld at large apertures. The closing curtain remains mechanical, which provides clean shutter timing. Full electronic shutter is not recommended for portrait work at fast shutter speeds due to potential rolling shutter distortion in subject movement. | |||
| 2 | EFCS outdoor limit at f/1.7 | Switch shutter type if EFCS artifacts appear at high speeds | Set |
| Bright outdoor portrait at f/1.7: EFCS has a practical high-speed limit. Fujifilm warns that faster EFCS shutter speeds are more likely to produce uneven exposure and altered out-of-focus rendering. The official product spec also notes that EFCS supports CL only in continuous shooting, so if you want CH burst behavior you must switch shutter type first. In bright light at f/1.7, watch for artifacts as shutter speeds climb; if they appear, switch shutter type or add ND filtration. A variable ND filter is the cleanest solution because it keeps you in the safer part of the EFCS range. | |||
| 3 | Drive Mode | CONTINUOUS (Low) | Set |
| Why Low burst: Fujifilm rates CL LOW SPEED BURST at 2 fps, and its official product spec notes that EFCS supports CL only. That slower cadence is still enough to catch a blink, half-smile, or head turn without filling the buffer immediately. Medium format portraiture is not machine-gun photography. | |||
| 4 | IS Mode | CONTINUOUS | Set |
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Film Simulation | ASTIA/SOFT | Set |
| Why Astia over Pro Neg. Std for the 80mm preview: Astia slightly compresses midtones and softens its highlight roll-off — which gives a more accurate preview of how the 80mm renders at wide apertures. At f/1.7, bright skin tones in the upper midtone zone can appear falsely optimistic with Provia or Pro Neg. Std previews. Astia's compressed rendering brings the preview closer to what the processed RAW file will look like after careful LRC work. It is also closer to the tonal character that makes the 80mm worth using. Note: this governs the preview only — the RAW file is unaffected. | |||
| 2 | Tone Curve — Highlights | −1 | Set |
| Slight shadow/highlight compression for preview: A slight −1 on highlights in the preview simulation helps you see the transition zone near blown highlights on skin. It's a preview aid, not a RAW parameter. The RAW file captures the full range regardless. | |||
| 3 | White Balance | AUTO (AA Ambience Priority) | Set |
| Why Ambience Priority for portrait: Ambience Priority WB preserves warmth in tungsten-lit environments — giving a more flattering, natural skin tone in the preview and in any delivered JPEG. For RAW work the WB is adjusted in Lightroom, but a warm starting point from camera tends to be more useful as a reference in the field than a clinically corrected one. | |||
The Street Shooter's Assumptions
The moment exists for fractions of a second. You do not control the light. Your subject does not know they are your subject. Every setting that makes the camera slower, louder, or more conspicuous is the enemy. The GFX's size cannot be hidden, but its behaviour can be made discrete.
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Shooting Mode | A (Aperture Priority) | Set |
| A mode with fixed aperture: Set a fixed aperture appropriate to depth of field. For street, f/5.6–f/8 gives adequate depth of field to accommodate minor focus errors while keeping subjects sharp. Programme the aperture into the bank — don't touch it in the field. | |||
| 2 | ISO | AUTO ISO | Set |
| 3 | Auto ISO Max Sensitivity | ISO 6400 | Set |
| Why 6400 max for street: Street photography happens in mixed, unpredictable light. ISO 6400 on the GFX 100S II, processed with LRC AI Denoise, is usable for street-sized prints. Push to 6400 rather than underexpose and get motion blur. Noise at medium format is more tolerable than blur — grain has a tradition in documentary photography. | |||
| 4 | Min Shutter Speed (Auto ISO) | 1/400s | Set |
| Why 1/400s, not 1/250s: The C3 bank is aligned to the GF 45-100mm F4, and at the 100mm end subject motion is magnified relative to the frame. Pedestrians, cyclists, and street subjects that would be acceptably sharp at 1/250s on a 24 MP camera show motion blur at 1/250s on a 102 MP sensor. 1/400s is the practical floor for street subjects on the 100mm end. At the 45–60mm end, 1/250s is adequate — but the bank must be calibrated for the worst case. If the GF 100-200mm F5.6 is mounted for restricted-distance documentary, treat 1/800s at 200mm as the moving-subject floor and watch the ISO ceiling. The Auto ISO ceiling of 6400 provides enough headroom that 1/400s is achievable in most urban environments. | |||
| 5 | Metering | MULTI | Set |
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Focus Mode | C (AF-C) | Set |
| 2 | AF Mode | ZONE | Set |
| Why Zone for street: Zone AF covers a defined region of the frame, within which the camera selects the closest subject. For street work — where subjects enter the frame quickly and may be off-centre — Zone AF provides a compromise between precise single-point and imprecise wide-area tracking. Configure the Zone in ZONE CUSTOM SETTING to a centre-weighted rectangle covering the middle third of the frame. | |||
| 3 | Subject Detection | SUBJECT DETECTION ON | Set |
| Why Subject Detection, not Face Detection: Subject Detection identifies humans and prioritises them within the AF zone — including partially visible people, people in motion, people from the back. Face Detection requires a frontally visible face. In documentary work, the most powerful frames often don't show faces. Subject Detection is the broader, more flexible tool. | |||
| 4 | AF-C Custom Settings | SET 1 | Set |
| Why Set 1: SET 1 has a Tracking Sensitivity of 2 — it holds focus on the current subject even when something crosses the frame, rather than jumping to the new element. For street photography, this prevents the camera from abandoning your subject when a person walks between you and them. | |||
| 5 | Release/Focus Priority (AF-C) | RELEASE | Set |
| Release priority, always: On the street, a missed frame is never recovered. Release priority fires regardless of focus confirmation. At f/5.6–f/8 with adequate depth of field, the percentage of usably sharp frames is high even without confirmed focus lock. | |||
| 6 | Touch Screen Mode | AF | Set |
| Touch to focus: In crowded urban environments, pointing at a subject on the screen and tapping can be more accurate and discreet than manipulating the focus lever. Enable touch AF for quick subject targeting from the hip or waist level. | |||
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Shutter Type | ELECTRONIC SHUTTER | Set |
| The most important setting for street: The Electronic Shutter is completely silent. In documentary and street contexts, silence is respect and discretion. It allows you to photograph at a conversational distance without the mechanical intrusion of a shutter. Note: at high shutter speeds (1/1000s+) with moving subjects, check for rolling shutter artefacts on the first session and adjust. | |||
| 2 | Electronic Shutter Sound | OFF | Set |
| 3 | Electronic Shutter Volume | OFF | Set |
| 4 | Drive Mode | CONTINUOUS (Low) | Set |
| 5 | IS Mode | CONTINUOUS | Set |
| 6 | Flicker Reduction | OFF (Electronic Shutter default) | Set |
| Why OFF here: Fujifilm disables Flicker Reduction when Electronic Shutter is active. In C3's silent-shutter state, this setting cannot rescue LED or fluorescent banding. If artificial light flicker becomes the problem to solve, switch to Mechanical Shutter and then enable Flicker Reduction as needed. | |||
| 7 | AF Illuminator | ALWAYS OFF | Set |
| The AF illuminator destroys the documentary relationship with the subject. It announces your presence and intent. There is no circumstance in street photography where this should be on. | |||
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Film Simulation | ACROS (or CLASSIC NEG.) | Set |
| ACROS for preview in street: If you think in black and white, shoot with ACROS simulation active. The RAW file captures full colour regardless — but a monochrome preview forces you to read the scene in tones, not colour. This radically improves compositional decisions in complex, colourful street environments. Classic Neg. for a colour preview that's more subdued and documentary-appropriate than Provia. | |||
Features That Can Revolutionise Your Practice
Beyond the three streams, the GFX 100S II contains capabilities that — when understood and integrated into practice — produce results that no other system can match. These are not gimmicks. Each one addresses a fundamental limitation of photography and, when used correctly, eliminates it.
What it does: The camera uses its IBIS system to move the sensor by precisely half a pixel between shots, capturing 4 or 16 frames. These frames are then combined by FUJIFILM Pixel Shift Combiner software on your computer into a single RAW file. The result is an image with essentially zero colour moiré (because every sensor site captures all three colour channels) and, in the 16-shot mode, dramatically reduced noise and increased effective dynamic range.
Why it matters: Bayer-pattern sensors assign each photosensor to one colour channel (R, G, or B). The other two channels are interpolated. Pixel Shift captures actual RGB data at every pixel location — eliminating interpolation entirely. At 102 MP, this produces files with real pixel-level colour accuracy that no single-shot medium format image can match. The output is genuinely beyond what 102 MP means in single-shot capture.
| Mode | Shots | What You Gain | Constraint |
|---|---|---|---|
| PIXEL SHIFT ACCURATE COLOR | 4 frames | Full RGB per pixel, zero colour moiré, enhanced colour accuracy | Absolutely no subject movement — architecture, product, still life only |
| PIXEL SHIFT HIGH RESOLUTION + ACCURATE COLOR | 16 frames | All of the above + significantly reduced noise + equivalent ~400 MP output | Rock-solid tripod, remote release, minimal vibration source within range |
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Drive Mode | PIXEL SHIFT MULTI SHOT (ACCURATE COLOR or HR) | Set |
| 2 | Interval between shots | SHORTEST | Set |
| SHORTEST interval minimises the time between frames during which any vibration can develop. If using flash, set a longer interval to allow full recycle. | |||
| 3 | Shutter Type | ELECTRONIC | Set |
| Use electronic shutter for pixel shift to eliminate mechanical vibration from the shutter mechanism entirely. The camera triggers the sequence using IBIS to move the sensor — any mechanical input is noise. | |||
| 4 | Self Timer / Remote Release | 2s self-timer or RR-100 | Set |
| 5 | IS Mode | OFF | Set |
| IBIS is being used by the Pixel Shift mechanism to move the sensor. It cannot simultaneously stabilise and shift. Leave IS OFF — the camera manages IBIS for the pixel shift sequence. | |||
| 6 | RAW Recording | LOSSLESS · 16-bit | Set |
| Each of the 4 or 16 frames is written as a full 16-bit lossless RAW. Budget storage accordingly: 16-shot sequences produce 16× your normal file size before combining. | |||
Use case in practice: Architecture, fine art reproduction, still life, product photography, any subject that will be stationary for 2–5 seconds. The combined output file is extraordinary — tested against single-shot files from the same scene, the colour depth and tonal transitions are perceptibly richer. This is the closest a camera-based system gets to medium format transparency quality.
What it does: The camera automatically takes a sequence of shots, shifting the focus point incrementally between each frame from a near focus to infinity. The resulting stack of RAW files can be focus-blended in post (Lightroom's Merge to Panorama or Photoshop's focus stacking) to produce an image with total depth of field from subject to horizon — something physically impossible with a single exposure on a 102 MP sensor.
Why it matters: The GFX 100S II hits diffraction at f/11–f/16. At 102 MP, diffraction-limited shots are visibly softer than optically sharp ones. Traditional landscape technique of stopping down to f/16 for hyperfocal depth of field trades optical sharpness for depth of field — and at this resolution, that's a bad trade. Focus bracketing lets you shoot at f/5.6–f/8 (optically optimal for most GF lenses) and achieve total depth of field through stacking, not stopping down.
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Focus BKT Mode | AUTO (recommended) | Set |
| AUTO vs MANUAL: AUTO mode automatically determines the step size based on focal length, aperture, and subject distance. MANUAL gives explicit control. Start with AUTO — it correctly handles the GFX sensor's depth-of-field requirements. Use MANUAL only when AUTO step size is visibly too large (gaps in depth coverage) or too small (excessive frames). | |||
| 2 | Aperture | f/5.6 – f/8 | Set |
| The critical choice: Shoot at the optically optimal aperture for your GF lens — typically f/5.6–f/8. Never stop down for DOF when focus bracketing is available. You will get sharper results from a stack of f/8 frames than from a single f/16 frame. | |||
| 3 | Starting Focus Point | Closest desired plane of sharpness | Set |
| 4 | Shutter Type | MECHANICAL | Set |
| 5 | IS Mode | OFF (tripod) | Set |
Post-processing the stack: Use Lightroom for RAW prep and cataloging, then send the frames to Photoshop or a dedicated stacking application for the actual blend. In Photoshop, the sequence is: File → Scripts → Load Files into Stack, then Edit → Auto-Align Layers, then Edit → Auto-Blend Layers → Stack Images. The result is a high-depth composite at the optical quality of your chosen working aperture.
What it does: The camera autonomously fires the shutter at a preset interval — 1 second to 24 hours — for a preset number of frames. With Interval Timer Shooting Exposure Smoothing enabled, the camera automatically corrects exposure drift between shots (as light changes from day to night, for example) to produce a smooth time-lapse sequence.
Why it matters for fine art: Time-lapse is one application. But interval shooting is more broadly useful: it enables unattended long-sequence landscape capture at golden hour and blue hour — the camera fires every 30 seconds or 2 minutes while you observe, compose alternate frames, or simply wait. Each frame is a full 16-bit lossless RAW. You end a session with 20–40 frames, each independently editable. This is process photography — the camera becomes a tool for sustained attention rather than reactive capture.
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Timer Source | WITH IN-CAMERA TIMER | Set |
| 2 | Interval (landscape) | 30s – 3min | Set |
| For static landscape work in changing light (golden hour), 30-second intervals give you 15–20 frames per hour. Each is independently usable. The best of the set becomes the final print. | |||
| 3 | Exposure Smoothing | ON | Set |
| Exposure Smoothing prevents step-changes in exposure as light dims or brightens through the sequence. Essential for sequences spanning dawn/dusk transitions. In Manual mode (which is preferred), Exposure Smoothing only works if ISO is set to AUTO — the only case where Auto ISO is appropriate in landscape shooting. | |||
| 4 | Interval Priority Mode | ON | Set |
| Interval Priority Mode ensures that shutter speed never exceeds the interval length — prevents a 45-second exposure firing every 30 seconds. Essential when intervals are short and shutter speeds are unpredictable. | |||
| 5 | Power Management | AC adapter (AC-5VJ) recommended | Set |
| The display powers down between shots during interval shooting. For sessions longer than 30 minutes, battery depletion is a real risk. Use an AC adapter when possible, or fully charged spare NP-W235 batteries. | |||
The GFX 100S II's in-body image stabilisation is rated at up to 8 EV of compensation. In practice, with careful technique, handheld shots that would require a tripod on any other medium format system are possible. This changes the equation of medium format photography fundamentally.
What 8 stops actually means in the field:
| Situation | Without IBIS | With GFX IBIS |
|---|---|---|
| GF 80mm (handheld) | Min 1/160s | 1/1s – 1/2s possible |
| GF 45-100mm at 100mm | Min 1/200s | 1/2s realistic |
| GF 100-200mm at 200mm | Min 1/400s | 1/8s – 1/15s with careful technique |
| Interior, available light | Tripod required | Handheld at 1/15s possible |
| Dusk, 50mm equiv. | Tripod required below 1/60s | Handheld to 1/4s |
IS Mode: SHOOTING ONLY vs CONTINUOUS. Use CONTINUOUS for handheld photography — IBIS is active at all times, giving you a stabilised preview in the viewfinder. Use SHOOTING ONLY if you want to preserve battery during casual use or when IBIS activity on a tripod-like support might cause vibration. OFF on a tripod, always.
The creative implication: The GFX 100S II becomes viable for interior photography, architectural interiors, and available-light portraiture without a tripod. This was previously impossible in medium format. A 1/15s handheld shot with static subject matter on the GFX 100S II can be optically equivalent to a 1/500s shot on a full-frame camera. The medium format aesthetic — tonal depth, micro-detail, spatial perspective — becomes accessible in situations that previously required studio equipment.
Exposure bracketing on the GFX 100S II is often misunderstood as an HDR tool. For deliberate fine art landscape work, it is something more useful: an insurance policy and a selection tool.
The GFX sensor's high dynamic range means HDR merging is often unnecessary — a single RAW file captured at the right exposure usually contains enough scene range for the final print. But bracketing by +/-1/3 EV to +/-2/3 EV around your metered exposure gives you three RAW files from which to choose the optimal exposure in Lightroom, without the commitment to a single reading. At 102 MP with complex mixed light, the difference between -1/3 EV and +1/3 EV can be meaningful.
| # | Setting | Value | Action |
|---|---|---|---|
| 1 | Frames | 3 frames | Set |
| 2 | Step | 1/3 EV (or 2/3 EV for high contrast scenes) | Set |
| 3 | Shooting Method | CONTINUOUS | Set |
| Continuous bracket fires all 3 frames in a single shutter press — minimising the time between frames and reducing the chance of subject (cloud, water) movement between bracketed exposures. | |||
| 4 | Sequence Order | 0 / − / + (metered first) | Set |
Where This Setup Breaks
A setup guide that only describes successful usage is incomplete. The GFX 100S II, for all its capability, has specific and predictable failure conditions. Knowing them in advance is the difference between adapting in the field and being confused by results that don't match your expectations.
Why it happens: At 102 MP, errors hide in plain sight. Slight motion blur, marginal focus, and diffraction softness often survive review at 100% and fail only at print scale.
Mitigation: If an image matters, assume it is worse than it looks. Slow down. Re-shoot. The GFX does not reward optimism.
Why it happens: The histogram clips at the JPEG rendering point. Two situations cause genuine unrecoverable clipping before the histogram warns you: (1) very specular surfaces (polished chrome, water reflection of direct sun) can clip 2–3 stops before the tonal region the histogram is measuring; (2) coloured surfaces — a red flower, a saturated blue sky — can clip in a single channel while the luminance channel appears unclipped on the histogram.
Mitigation: Switch from luminance histogram to RGB histogram. Watch individual channels. A blown red channel on a saturated flower shows as channel clipping, not luminance clipping.
Why it happens: At f/1.7–f/2, depth of field is so shallow that the eye detection point and the actual sharpest plane are different by the width of the iris. The detection algorithm identifies the eye region; the AF point locks somewhere within it, not necessarily at the iris surface.
Mitigation: Use Single Point AF placed manually on the near iris. Verify with focus magnifier before critical sessions. Accept that at f/1.7 with a moving subject, a percentage of frames will have this failure — it is inherent to the optical condition.
Why it happens: The electronic shutter reads the sensor progressively (rolling shutter). Under flickering light sources cycling faster than the read-out speed, different parts of the frame are read during different phases of the light cycle.
Mitigation: In C3's Electronic Shutter state, Flicker Reduction is unavailable. If banding appears, switch to Mechanical Shutter and enable Flicker Reduction there if the light source requires it. The image is worth more than the silence.
Why it happens: Pixel Shift requires absolute stillness between 4 or 16 frames. Any micro-vibration — a nearby road, wind-induced camera movement, an unstable tripod head, a passing vehicle — creates pixel-level misalignment between frames that the combiner cannot repair.
Mitigation: Test the environment for vibration by placing a hand on the tripod between shots. Use a remote release. Shoot SHORTEST interval. In any outdoor environment with wind, accept that pixel shift will fail and shoot standard single-frame. Pixel shift is a controlled studio technique, not a field tool.
Why it happens: Colour noise in the shadow zone at high ISO creates patches of hue variation. Shadow lifting amplifies these patches. LRC's colour NR at its default levels doesn't fully suppress them.
Mitigation: Apply AI Denoise before shadow lifting. Set Colour NR to 40–50 before evaluating Luminance NR. Reduce the amount of shadow lifting — the GFX sensor at ISO 3200 still has meaningful shadow depth if you don't aggressively push it.
Why it happens: The GF 45-100mm and GF 100-200mm both have physical OIS switches on the barrel. If either the OIS barrel switch OR the camera IS Mode is left active on a tripod, the optical and sensor stabilisation systems are active with no movement to correct. They generate micro-movement searching for signal.
Mitigation: Every time either OIS zoom goes on a tripod: check the barrel switch (OFF), check IS Mode (OFF). These are two separate actions. Build a physical pre-shoot checklist. This failure is silent and easily missed until you view the files at 1:1.
Why it happens: The GFX 100S II's maximum burst rate and AF system were not designed for fast action. Buffer depth at 102 MP limits sustained shooting. AF-C tracking, while improved, does not match APS-C or full-frame dedicated sports cameras.
Mitigation: Accept the constraint. Anticipate the peak moment and single-fire at it rather than burst-shooting and hoping. The GFX rewards patience and prediction over volume. If your subject genuinely requires a fast action camera, the GFX is not the tool for that session.
Why it happens: Auto Update Custom Setting is enabled by default and silently saves any change made while in a custom bank back to that bank immediately.
Mitigation: Disable Auto Update Custom Setting universally. Save changes to banks only intentionally. If you need to verify a bank's contents, use EDIT/CHECK in the custom settings menu to inspect all values before a shoot.
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