Earlier in November 2025 i repaired a Canon Eos 10 camera from the 1990s and then took it out to test it with a roll of Kodak 400 asa film. You can find the repair here: Canon EOS 10

The caveat is that the film expired in 2005, 20 years ago. As a result I have overexposed it at 200 asa to compensate for the deterioration in sensitivity from such a long storage period. It may work, it may not, previous tests on a 200 asa film showed that a one stop over exposure was quite sufficient. Fingers crossed 🤞 on this one.
I don’t expect anything much, I expect quite a bit of grain and a definite colour hue over the entire roll. Who knows there may be nothing on it at all 🤷♂️
I’ve sent the roll off to our local photo guys in Leicester : Classic Photo Supplies and hopefully something will be on the medium res scans that i have requested. If there are pictures below, then there was some success, if not, enjoy the blackness.
Well, the scans are back and to be quite honest this one is a bit of a disaster. As stated the film is over 20 years out of date and there appears to be two problems here. Underexposure is one issue, I over exposed this by one stop but I don’t even think that is enough. If I’d overexposed at 2 stops though I might have improved the brightness, the already heavy grain would have been even more exaggerated. I think it’s fair to say this 400 asa old film stock I have is passed its time and not really fit for use.





So. Though the results were not good and I have now realised that this old stock film is probably best for me to use as test film only. There is heavy grain, a distinct cast over the film and a quite obvious shutter curtains sync issue. These frames above a shutter speed of 500 seem to be the issue, and that is where the shutter speed has not synced the curtain, it’s definitely running slow. The film has been beneficial in identifying an issue in this part of the camera. I will now do a CLA on this camera shutter assembly to try to remedy this issue. I wasn’t using flash here, it was a dull cold English Sunday afternoon.
This is an old camera that has been sitting idle for many years, it may sort itself out after a few more rolls of film, however I can do something about it now. And this is really a lesson to be learned for anyone buying old film cameras, they do need that little bit of tender loving care to get them back into a good working condition.
I’m pleased I’ve highlighted this issue, I will get the work done to improve the shutter sync and then run another roll of film through it.
Maybe now is the time to buy a shutter speed optical tester. That may save me a bit of expense on processing costs and will also allow me to make these checks before committing to film.




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