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 Yashica FX-1 (1975) is the camera that introduced the Contax/Yashica (C/Y) lens mount. Developed as a joint project between Yashica and Carl Zeiss Jena (West Germany) to create a shared lens ecosystem, the FX-1 was Yashica's first electronically controlled SLR with aperture-priority autoexposure. A center-weighted TTL silicon meter drives an electronic horizontal-cloth shutter. The aluminum alloy body is substantial — over 700 g — and sits physically larger than the later FX-3 and FX-D bodies. All subsequent Yashica and Contax SLR bodies adopted the C/Y mount that the FX-1 established.
Reference
Recommended film stocks for the 35mm 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 Tri-X 400 is a classic black-and-white film known for strong tonality, visible grain, and documentary character.
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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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Before you buy used
About this camera
The 1975 Yashica that launched the C/Y mount — aperture-priority AE, electronic shutter, the ancestor of every Contax SLR.
| Field | Value |
|---|
| Format | 35mm |
| Mount | Contax/Yashica (C/Y) |
| Years | 1975 - ~1979 |
| Shutter | ~4s - 1/1000s, electronic horizontal cloth |
| Flash sync | 1/60s |
| Meter | TTL center-weighted silicon |
| Modes | Aperture priority, manual |
| Weight | ~730 g |
| Battery | 4x SR44 or 1x 6V PX28 |
Yashica introduced the FX-1 in 1975 as part of the agreement between Yashica and Carl Zeiss that would culminate in the Contax RTS (also 1975). The C/Y mount defined a shared bayonet standard allowing Yashica and Contax bodies to interchange the same family of Carl Zeiss T* lenses. The FX-1 was positioned as Yashica's premium body — below the Contax RTS in feature set and build, but sharing the same mount and compatible glass.
The FX-1's successor, the FX-2 (~1976-1977), refined the specification modestly. The FX-D Quartz (1979) added quartz-controlled shutter timing and a more modern feature set, largely superseding the FX-1 line. The FX-1 had a relatively short production window of roughly four years.
The FX-1 has historical significance as the founding body of the C/Y mount — the ecosystem that produced decades of Carl Zeiss T* SLR lenses now widely adapted to mirrorless digital systems. Without the FX-1 establishing the mount standard in 1975, the Contax RTS, Aria, ST, and RTS III line would not have followed.
For contemporary film photographers, the FX-1 itself offers an affordable entry point to the C/Y mount at a time when the FX-3 Super 2000 and Aria attract higher collector prices. Its aperture-priority mode and TTL metering are functional for the shooting style most film photographers use. The fully electronic shutter without mechanical fallback is the principal drawback — a dead battery stops the camera entirely.
The FX-1 is also notable as one of the earliest production AE SLRs combining electronic shutter control with TTL metering in a Yashica body, predating the electronic AE features that became standard across the industry by the early 1980s.
Full Contax/Yashica (C/Y) mount compatibility, including:
BW
Ilford HP5 Plus is a flexible ISO 400 black-and-white film with classic grain and strong push-processing tolerance.
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Kodak Ektar 100 is a fine-grain C-41 color negative film with saturated color and high sharpness.
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