Once, I needed a 120 film take-up spool. The simplest solution was to get an expired roll of Svema color DS-4 (Свема ДС-4) film.
It should have been processed before June 1990.
I rewound the film onto a rod and used the spool. After some time, I thought, "Why don't I shoot this expired film just for fun?"
So, I rewound the film onto the spool back and took some pictures with my Kiev-6S (6x6) camera and the Mir-26B 45/3.5 lens.
The film is ASA/ISO 50, but I exposed it as ISO 5-10. This required using an f/3.5 aperture for all shots.
This color negative film should be developed using the so called "Sovcolor" process. It is a Soviet derivative of the German Agfacolor process. However, I decided to develop the film using a B&W developer (this was my second attempt at developing color film as a B&W negative). I developed the film for 9 min with Pyrocat-HDC (1:1:100) and fixed it with a neutral fixer (plain sodium thiosulfate solution). There was no bleaching step.
The negatives turned out too dark, but I successfully digitized them.
Although there are some spots and streaks, the result is surprisingly usable.
See also related notes:
- NONS SL42 (II): Medium-format (P6) lenses - Biometar, Vega, Mir (2025-07-29)
- Kiev-6S: Budget medium format film camera (2025-06-11)
- Developing a color C-41 film as a B&W negative (2024-11-23)
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