Ugh, forgot to label film - quick dev question

IloveTLRs

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I shot two rolls of Presto today, one @400, the other pushed to 1600. I forgot to label which one was which (I know, I'm still kicking myself.) The way I see it, I have three options

1. Dev them both @400 so at least 1 roll comes out (D-76 for 7mins)
2. Dev them both @1600 so at least 1 roll comes out (D-76 for 14mins)
3. Dev them in D-76 for about 10 minutes ... would that work or ruin them both?
 

Neal

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Another option is to develop one roll (you have a 50:50 chance of being right) and then developing the next accordingly. You could also decide if one roll is significantly more valuable to you than the other.

BTW: Even a pencil will mark film canisters well enough. You could even scratch them with a key or a coin.

Neal Wydra
 

ben-s

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I'm surprised no one has suggested a clip test - Surely you could run a clip test for ISO 400 on one roll? If it's properly developed, that's your 400 roll, if it's dim, it's the 1600.
 
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IloveTLRs

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Clip test? You mean clip a piece off the film and develop that piece only? There's an idea ...

I could reshoot both rolls (I'm no pro) but I'd rather save at least 1 roll.

Good lesson to take a pen or pencil along with me next time ...
 

ben-s

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Clip test? You mean clip a piece off the film and develop that piece only? There's an idea ...

Precisely
At worst, you stand to lose a few frames, as opposed to losing a whole roll!
 
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IloveTLRs

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Nice one. I'll try that, thanks
 

ben-s

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Good luck, let us know how you get on!
 
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IloveTLRs

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I cut off about 2" of a roll and did it in D-76 for 7:30. Doh!! The 2" piece had two photos I really wanted to keep ... The negs look okay though, and at least now I know which roll is which (and to bring a #$%& pencil with me next time.)

Thanks for the help!
 
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