NexFilm Engine v1.1.0 Released Changelog →

Scientific Film Density Inversion Workspace

Engineered for camera scanning and film scanners. Built on physical optical density inversion to eliminate cross-channel distortion, with roll-wide calibration and darkroom printer lights — entirely offline.

Download for macOS (v1.1.0) Documentation & Guide

View all platforms & SHA-256 → · GitHub Release (v1.1.0)

Inverted Positive

Negative Raw Scan

Kodak Portra 400 (135 Format · 35mm) | Nikon Z6 II + Nikkor Micro 105mm f/2.8

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CORE VALUES & CAPABILITIES

Four Core Values Built for Film Photographers

Engineered to solve rapid positive correction, shift-free roll batching, medium-format archiving, and physical grading.

Instant Inversion & Shift-Free Batch

Instant base color detection and single-frame inversion; roll-wide benchmark sampling with shared white points to batch-invert 36 frames with zero color shifts.

Roll Archive & Contact Sheets

Intuitive 3-way import with multi-format filtering (135, APS, 120 645-6x17, large format), camera & date tags, and one-click realistic contact sheet generation.

60fps Printer Lights & Print LUTs

Faithful optical enlarger additive RGB printer light sliders; 4-channel tone curve, live waveform with clipping warning, and 14 built-in Kodak & Ilford .cube LUTs.

Optical Density Foundation & Air-Gap

Logarithmic optical density pipeline D = -log₁₀(T) with unified RAW/TIFF math; native Rust + local SQLite, strictly read-only source files, and zero cloud lock-in.

Explore Complete 4-Pillar Feature Matrix & Architecture →

LIVE WORKSPACE SANDBOX · INDUSTRIAL DARKROOM UI

Engineered for Optical Darkroom Grading

No download required — interact directly with the native HTML/CSS/JS darkroom workspace. Test menus, switch views, drag printer lights & tone curves.

Switch between Library, Develop, Rolls, and Hardware Calibration views Toggle Dark/Light themes and EN/ZH in the top setting menu Fine-tune Printer Lights, Tone Curves & 14 Print LUTs in Develop

← Swipe horizontally to explore the full desktop interface →

NexFilm Engine v1.1 · Web Sandbox

Interactive Real UI Sandbox · Directly test menus, view switching & darkroom controls

Broad Compatibility

Comprehensive Input & Master Delivery

Input Format Matrix

Camera RAW: DNG, ARW/SR2, CR2/CR3, NEF, RAF, RW2, ORF, PEF, 3FR, IIQ
Scanner Native: Hasselblad Imacon / Flextight .fff streaming row decoder
Raster Scans: 16-bit / 8-bit TIFF, PNG, JPEG

Explore complete input matrix & decoder specifications →

Output & Archival Delivery

Master Archival: 16-bit linear TIFF, linear DNG, repackaged camera RAW DNG
Color Profiles: Embedded sRGB, Display P3, Adobe RGB, Rec.2020, ProPhoto, ACEScg
Roll Proofing: High-res JPEG Contact Sheets with camera & exposure EXIF injection