Canon Eos 10 test shots

Learnings from testing an old camera with expired film stock

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

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 As stated the film is over 20 years out of date and there appears to be two problems here.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.

Look at the grain at plus one stop overexposure
Hello what’s that line?
Heavy grain and a magenta cast
That shutter sync problem
Slower speed, shutter ok

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.

Expired camera film

What shall I do with all these expired rolls of 35mm film? I know, let’s take some pictures

I’ve recently inherited 8 rolls of life expired 35mm film. In other hands I guess these would just be discarded, and thrown away, however this is me writing, you know, that fool who collects old knackered cameras. That’s me that is.

Well I’m going to use them.

What could possibly go wrong.

8 rolls of film 20 years old

A number of things to be precise, let me enlighten you. As these rolls of films all expired back in 2005 this means they expired 20 years ago, that’s a third of my life span, phew! Film loses its sensitivity over time and we will have to compensate for that when we get to use the film. Colours and dyes fade, and the finished product (if there is one) is likely to look washed out. Add to that the issue of not knowing how the film has been stored over the last 20 years, and this could be the difference between there being an image and just being blank film. If the film has been kept cool, and in a darker environment, there is more of a chance of getting a result than one that has been stored in light and heat. You get the picture….or not.

These rolls are colour negative film all using the C41 chemical development process. And for this type of film and process, the line drawn in the sand says that it’s wise to overexpose the film by 1 stop, for every 10 years (Decade) of expiry. Since the rolls i have are now twenty years out of date, following these guidelines I would be advised to overexpose these films by 2 stops.

Black and white film is more forgiving and might not require adjusting at all, whilst transparency film is totally unforgiving, and personally i wouldn’t touch it with a barge pole.

The higher the ASA setting on the film, means that it requires less light, a lower settings means that more light is required. Therefore, as an example, if these films were originally rated at 400 asa i would now be advised to expose them at 100 asa therefore allowing more light in to expose the deteriorating film accordingly. But remember, when you process the films they must be processed at standard normal development times, if you push or pull the development times you will not achieve the result you require. Develop as normal.

The unknown factor here really is how the film was stored. Chances are that if it was stored in perfect conditions, then we could probably get away with using its original asa setting. But we just don’t know and will just have to suck it and see as they say. We won’t really know how things are going to turnout until we’ve developed the film.

Old film is good for experimental purposes, you don’t really want to trust old film to a photo shoot as you could be wasting time and money. Unless you really want that old washed out retro 70s look.

The film stock I have is listed below:

I have 4 rolls of Kodak Gold 200ASA colour film.

Gold 200 ASA

I also have 4 rolls of Kodak Gold Ultra 400ASA film.

Gold Ultra 400 ASA

All expiry dates are circa 2005, so they are exactly 20 years out of date. I’ve put them all in to cold storage for now but it could well be 20 years too late. Typical for me, always late to the party!

As an aside to these films, I’ve also found a Canon EOS 30 body that I have also been given to get working again, it just so happens to have a partially exposed film inside it. Now this roll I will have to expose as per normal as it has a dx code reader inside, and I can’t override it from what I can tell initially. It will be interesting to see what it returns.

So. When I get around to exposing these films, the 400ASA will be exposed at 100ASA and the 200ASA ones will be exposed at 50ASA. To be honest, I will probably expose half a roll of each at the original setting and then half at the modified setting. It will be good to see the difference, the deterioration and the grain quality. I have a number of old 35mm cameras still to test, so these rolls will be a welcome opportunity to test and experiment, and you don’t often get the opportunity to do this, so I’m going to make the most of it and have some fun.

I’ll let you know how it goes 🤞

2024-2025

Probably one of hundreds of thousands of similar posts that will go out around midnight as the clock strikes 12, I’m loving this year seeing some blogs I follow calling up “Happy new year” many hours prior to us even getting there. It’s lovely to see and I return the compliment of Happy new year, I sincerely hope that the coming year is kind to you and that you achieve all that you set out to do. I really do.

When discussing the years, we normally say it’s a good or a bad one, I’ve had one of those years where I’ve suffered loss, it has really hurt and still does. But it wasn’t a bad year. The last four months have been awful I won’t deny that, but the eight prior ones were fantastic as we spent good, quality time with that family member, and fantastic life long memories were made forever. I am so thankful for being blessed with having that individual in my life. He was a gift to us, and the Lord called him home to be at his side. We were blessed, you can really have too much of a good thing.

Going forward into 2025 we have a lot of plans, and hopefully these will come to fruition along the way. We don’t plan too strictly as plans often fail but they can always be scheduled for a more appropriate time. Happiness and contentment are all we really want, we don’t want anything material, we have all we need. We are by no way rich, far from it, but we are extremely wealthy where it comes to love and appreciation for what we have, what we have had, and whatever is coming our way in the future.

We are all blessed, I’ve stated in an earlier post that the fact we are all on this small planet in a vast universe, is outstanding, the odds on you being here are 40 Trillion to one. You are a very special and important person. It’s an exclusive club for sure.

Don’t cringe at this next statement, its corny but let’s hope the year brings less war and hate and more peace and compassion. I doubt it will, but we can all dream.

I send greetings to you, your family and friends and sincerely wish you all the most happy and joyful of years.

Be the special person, help that one person in need. Change the world, if only for that one person.

Love and peace to you all.