C41
Kodak Portra 400
Kodak Portra 400 is a professional C-41 color negative film known for flexible exposure latitude, natural skin tones, and fine grain.
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The Nons SL42 (2019) is a unique modern instant camera: a **single-lens reflex body that takes Instax Square film** and accepts **35mm SLR lenses** via interchangeable mount adapters (Pentax K, Canon FD, Nikon F, M42 — the user picks the mount when buying or buys multiple adapter rings). Pentaprism viewfinder, focal-plane electronic shutter, programmed exposure with darken/lighten bias. Made by Nons (Hong Kong / Italian collaboration). The follow-up **Nons SL660** (2022) refined the design with full PASM modes.
Reference
Recommended film stocks for the instax-square format your camera takes.
C41
Kodak Portra 400 is a professional C-41 color negative film known for flexible exposure latitude, natural skin tones, and fine grain.
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Kodak Gold 200 is a daylight-balanced C-41 color negative film with warm color, moderate grain, and a classic consumer-film look.
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Ilford HP5 Plus is a flexible ISO 400 black-and-white film with classic grain and strong push-processing tolerance.
Develop instax-square film
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Before you buy used
About this camera
The first interchangeable-lens Instant SLR. Mount Pentax K, Canon FD, Nikon F, or M42 lenses on a body that shoots Instax Square film.
| Field | Value |
|---|
| Format | Instax Square (62×62 mm image) |
| Mount | Pentax K, Canon FD, Nikon F, or M42 (interchangeable adapters) |
| Years | 2019–present |
| Shutter | 1/30s – 1/500s, focal-plane electronic |
| Modes | Program with darken/lighten |
| Focus | Manual (lens-dependent) |
| Weight | 700 g |
| Battery | 1× CR123A |
Released 2019 via Kickstarter campaign. The SL42 was Nons's first product; the company has since released the SL660 (2022, refined SL42 with PASM modes) and announced the SL645 (Instax Wide variant) for 2025.
The SL42 fills a unique niche: using legacy 35mm SLR lenses on instant film. A user with a collection of vintage Pentax K, Canon FD, Nikon F, or M42 lenses can mount them on the Nons body and shoot Instax Square — getting the optical character of those lenses (50/1.4, 85/1.8, 135/2.8) on instant film. No other camera offers this.
For 2026 buyers, the SL42 at $700 is positioned as a creative-photography tool. Trade-off: the Instax Square format is square-cropped vs the lens's typical 35mm rectangle; many photographers use the SL42 with portraits and creative shots.
Interchangeable mount adapters: Pentax K (KAF), Canon FD, Nikon F, M42. Adapters cover most 35mm SLR lens systems. Specific lens choice depends on the user's existing collection.
BW
Kodak Tri-X 400 is a classic black-and-white film known for strong tonality, visible grain, and documentary character.
View profile →Nons SL42
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