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, then took the spool out to use it. 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, 20°C) 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. Note that there are no backing paper numbers shown on the negatives (a common issue with expired 120 film).
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)
Image albums:
Warm tube photos.
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