The knowledge layer

Color, Color Chrome Effect & FX Blue — the saturation/richness controls

These control how intense and how rich colours render. They sit on top of the film-sim base and the WB cast.

Why Fujifilm Film Simulations Cannot Be Replicated in Post-Production

When you adjust Hue/Saturation or Selective Color in Photoshop, you apply a single scalar transformation to a region of the color wheel.

Dynamic Range & Tone Curve — the contrast controls

These settings shape the contrast curve: how highlights and shadows are rendered, and how much tonal range is preserved.

Film Chemistry Fundamentals — Why Film Looks the Way It Does

Every Fujifilm simulation setting — Grain Effect, the ISO/grain relationship, Acros's tonality, even Sepia — is a digital model of a chemical process.

Measuring film curves from datasheets — method, calibration, and its limits

Gamma is \"the slope of the straight-line portion\", but that portion has no exact boundary, so the answer depends on how you sample it. Two estimators are used here:

Film Simulations — the base profiles

The Film Simulation is the master colour/contrast profile. Every other setting is a modifier layered on top of it, so the base you pick determines the fundamental character of the grade.

Film Stocks Master List — the Canon of Top Stocks & Recipe Coverage

The reference canon of the most important film stocks per manufacturer, with this bank's coverage status. Use this to decide what to emulate next.

F-Log, F-Log2 & RAW Editing — X-T5 Workflow

So for most work you can shoot Eterna and get near-log latitude with a usable, gradeable image straight off the card — no conversion LUT, no ISO floor, no ND juggling, and the cinema recipes already…

Fujifilm Official Design Notes — from the X Stories / product pages

First-party statements from Fujifilm's own Image Design team about how the film simulations were engineered — extracted from the official X Stories series and film-simulation product pages (the…

Grain & Detail — Grain Effect, Sharpness, Clarity, High ISO NR

These settings control texture and micro-detail — how film-like or how crisp/clean the image feels. They don't change colour, but they hugely affect the character of a grade.

ISO & Exposure — Auto-ISO, exposure compensation, and DR interaction

These aren't part of the colour \"grade\" per se, but they're specified in every recipe because they affect the rendered result and the film feel.

The nerd guide: turning a film datasheet into a recipe

This is the guide for people who want to know why a recipe says what it says, and how to build their own from primary sources instead of vibes.

Post-Production Film Grain — deriving settings from datasheets

There are three parts to matching film grain, and they are not equally knowable:

Analog vs. Digital: Pro 400H Film Stock vs. Pro Neg Hi Simulation

This document captures key findings from a side-by-side comparison of actual Fujifilm Pro 400H 35mm film scans against the PRO Neg. Hi in-camera simulation shot on the X-Pro3.

Sensor Architecture — X-Trans, Bayer, and what GFX actually is

A sensor photosite is colour-blind — it counts photons. Colour comes from a colour filter array (CFA) bonded over the sensor, giving each photosite one colour, with the missing two thirds…

Fujifilm Recipe Settings Reference

A quick reference for what each in-camera setting does. Useful context for designing recipes.

Validation Methodology — Proof of Faithfulness

The standard every recipe must meet to be promoted to originals/ and sold. The goal: faithful reproduction, proven against real film — not a single pretty example, and not vibes.

Video / Movie Mode — settings, differences, and photo→video translation

Film-look recipes for movie recording are not the same as stills recipes, because the X-T5 exposes a reduced set of image-quality controls in movie mode.

White Balance & WB Shift — the colour-cast control

White Balance (WB) sets the overall colour temperature/tint of the image, and the WB Shift grid nudges it precisely.

X-Trans IV to V: converting a Fujifilm recipe

A recipe built for X-Trans IV needs one documented change on X-Trans V: drop Color Chrome FX Blue by one notch. Measured, not guessed.

Why You Can’t Actually Fake Film in Lightroom

Stop relying on Lightroom presets to emulate analog film. Discover why the non-linear physics of film dye absorption cannot be replicated using HSL sliders, and why in-camera Fujifilm simulations are structurally superior.

Silver Halides & Digital Sensors: What Is Film Grain, Really?

Stop treating film grain like digital noise. Learn the physical chemistry of silver halide crystals, why film speed dictates texture, and how to perfectly map analog grain to your Fujifilm X-T5.

The S-Curve Explained: How to Master Fujifilm Highlight and Shadow Tones

Stop guessing your Fujifilm tone curves. Learn how the chemical autocatalysis of analog film development maps directly to the Highlight and Shadow Tone settings on your X-T5.

Pro 400H vs. Pro Neg Hi: Why Fujifilm's Digital Emulation is 'Too Perfect

A side-by-side forensic analysis of real analog Fujifilm Pro 400H versus the digital Pro Neg Hi simulation. Learn why the digital profile feels clinical and how to inject analog chaos back into it.

The X-Trans V Problem: Why Your Old Fujifilm Recipes Look Terrible on the X-T5

Discover why older Fujifilm film simulation recipes produce neon blue skies on the X-T5 and X100VI. Learn the exact mechanical rule to fix X-Trans V color shifts and convert classic recipes.

Demystifying Color Chrome Effect: Density vs. Saturation

Stop using the Color Chrome Effect as a saturation slider. Discover the real physics behind dense film dyes, how Fujifilm models them digitally, and when to use Strong, Weak, or Off on your X-T5.

The Auto White Balance Trap in Film Emulation

Why Auto White Balance ruins Fujifilm film simulation recipes. Learn how AI-driven AWB algorithms fight analog color casts, and why fixed Kelvin is the secret to consistent recipes.

ISO is a Creative Tool: How to Force Analog Noise on the X-T5

Stop fearing high ISO. Learn why pushing your Fujifilm X-T5's ISO is the secret to generating authentic, organic film grain, and why base ISO looks too clean for vintage emulations.

Grain and Detail: How to Stop Ruining Your Fujifilm Recipes

Master the Grain Effect and Sharpness settings on your Fujifilm X-T5. Learn the difference between Large and Small grain, and why digital sharpness destroys analog film emulation.

The Tone Curve Audit: Where Most Fujifilm Recipes Fail

Why do your Fujifilm film simulation recipes look flat or muddy? Learn how to audit your Highlight and Shadow Tone curves and map them correctly to analog film contrast.

How to Convert Fujifilm X-Trans IV Recipes to X-Trans V (X-T5, X100VI)

A definitive guide to translating older Fujifilm film simulation recipes for modern X-Trans V sensors. Learn why the blue channel renders differently and how to fix it.

Film Chemistry Explained: How to Map Analog Film to Fujifilm Digital Settings

Learn how the physical chemistry of silver halides, development clumping, and film dyes translate directly into Fujifilm X-T5 grain, tone, and color settings.

How to Build Film Simulation Recipes Using Kodak and Ilford Datasheets

Stop guessing your Fujifilm recipe settings. Learn how to read official Kodak and Ilford film datasheets, map RMS granularity to Grain, and translate characteristic curves to digital tones.