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Showing 1-13 of 13 posts in this discussion
Initial post: 4 Apr 2012 18:28:07 BDT
Hello, I found some film the other day laying around my house so I decided to go out and buy a film camera to mess about on, I brought a Canon 300v. The question is how can you tell if the film has been used? My mum thinks it has but im not sure, is there a way to tell after all the shoots have been taken? I place it in my camera and got that there was something like 22 shots and I accidently took a shot (: Any help would be appreciated and thanks for the help on my other questions (sorry for a lengthy question)

Posted on 4 Apr 2012 19:47:49 BDT
X says:
SJ: What gave you the idea that 22 shots had been made?

Posted on 4 Apr 2012 20:34:20 BDT
I looked at the manual, sorry not 22 shots taken there were 23 left, would this mean that the film hadn't previously been used?

In reply to an earlier post on 4 Apr 2012 21:16:07 BDT
I think its unlikely the film has been used because usually when the film is finished it automatically winds itself back into the cassette without the leading tab out. Unless its been manually rewound and even then I would expect it to be still fully wound back into the cassette. I'd give it a go!

Posted on 4 Apr 2012 23:06:34 BDT
X says:
SJ: I too would give it a go, but not on any once-in-a-lifetime shots that would lead to tears if it all came out a tasteful shade of grey. I'm still trying to work out how you got a 35mm film to tell you how many exposures remained available or had been made.

In reply to an earlier post on 5 Apr 2012 00:41:14 BDT
Last edited by the author on 15 May 2013 10:12:38 BDT
There could be 23 left out of 24, having taken one.
The obvious question is of course 'how old is the film?'
I recently found an exposed film my father took, had it developed at vast expense and could only see some very faint images, underexposed by about 6 stops (at a guess).

Posted on 2 May 2013 14:49:41 BDT
[Deleted by the author on 2 May 2013 14:55:13 BDT]

Posted on 7 May 2013 22:58:11 BDT
Basically, you cannot tell if a film has been exposed or not, whether the tongue is in or out.
I used to be a professional and I had my then EOS 3 set up to not wind the film back completely, I had the habit though of tearing the tongue to tell me that it had been used. My medium format on the other hand only wound one way and these had a paper backing that had to be stuck down with a sticky tab fixed to the end of the backing paper.

In reply to an earlier post on 15 May 2013 08:42:20 BDT
Bollocks

Posted on 15 May 2013 13:17:21 BDT
Alex MacPhee says:
It's just a wild guess, as I don't know the camera, but I wonder if the original poster's camera had automatic pre-wind, where the film is loaded and immediately wound to the end by the camera, which then proceeds to expose each frame back in to the cassette. That way, it ensures that accidental opening of the camera doesn't spoil exposures already in the cassette. That would explain why the original poster said there were 22 shots left (admitting it's an uncommon number, unless is was a hand-loaded cassette).

My custom, incidentally, when removing a film cassette, where I try to leave an inch of leader out for ease of later processing, is to put a little bend in the leader trim about half an inch from the end. That tells me that a leader-out film has already been exposed.

In reply to an earlier post on 15 May 2013 13:47:44 BDT
Alex
I do hope you don't get the same responce as I seem to have got, see above your post.
The simple answer to 35mm film is that there is absolutely no way of knowing if the film has been exposed just by looking at it. Until the latent image has been developed there is nothing to see.

In reply to an earlier post on 15 May 2013 15:48:48 BDT
Alex MacPhee says:
A.J.,

It's a shame that Mr Pollard has been spamming several of these photo forums, but thankfully 'Ignore this customer' takes care of the noise.

You're right, of course, there's no way by inspection to tell if a film has been exposed. The failsafe, I guess, has to be to treat an 'unknown state' film as exposed, so we rely on small tips and tricks like the one you described, which is similar to the method I use.

Posted on 28 May 2013 18:13:42 BDT
Last edited by the author on 28 May 2013 18:16:58 BDT
I have a Canon EOS 300 and yes the film loads by winding to the end of the roll and then counts down. It usually gets to the end and then knocks one number off... Some 24 exposure films occasionally have less exposures than that..depends on the manufacturer
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Participants:  9
Total posts:  13
Initial post:  4 Apr 2012
Latest post:  28 May 2013

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