Benshi
A retro film camera for the iPhone era that turns every photo into a frame of film — portrait mode is a pocket darkroom, landscape a tiny cinema. Not a filter chain but real physics: Metal GPU shaders simulate silver-halide grain, H&D curves and halation.
An IbouAI product
The experience we built
- Film physics simulation — silver-halide grain, H&D curves, halation & reciprocity failure
- 7 categories, 70 looks × 32 films × 5 developers × 8 lenses ≈ 90k combinations
- Lens simulation — swirly bokeh, dreamy glow, thorium amber (28–85mm)
- Manual controls — continuous AF, spot metering, MF punch-in, AEB & interval
- On-device AI captions + custom recipe saving (Pro)
Implementation technologies and features
- SwiftUI
- Metal GPU Shaders
- Core Image
- On-device AI
- RAW · 16-bit
- StoreKit
- App Store Distribution
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