Developed two rolls of C-41 for the first time at home. One roll was shot with a LOMO Smena Symbol (have shot with before and developed at shop) and the other with a Zenit ET (first time using). The Symbol roll came out just fine but the Zenit roll has a weird wavy sort of pattern that repeats spanning the entire film.
The scan of the film shows one dark wave that repeats. What could be the cause for this? Some ideas I have:
- The camera has a light leak. (but the constant repeating wave doesn't make sense then)
- During development (when the film was rolled up) a light leak happened in the dark room. This would explain why the pattern repeats (only a sector of the film got exposed).
- Bad film. (unlikely)
- Camera has a bad mirror. This would explain why half of the film is cut off anyway (as can be seen in the scan) but doesn't explain the wavy pattern.
Films were developed separately. Normal printer scanner was used to show the effect hence weird colours.