Gautam Valluri Posted February 11, 2024 Posted February 11, 2024 (edited) Greetings! Last summer I did some tests on some old 7217 stock where I exposed at box speed (200 ASA) and push-processed the footage 1-stop. I was pleased with the results, especially with exterior shots. I'm wondering if I can technically get the same kind of image if I simply expose the stock at 100 ASA and process normally? Considering push-processing pretty much doubles the per meter costs of development. Also, this stock is easily 15+ years old. Thanks in advance for your views, G EDIT: Just adding that I went through some other posts on the forums already and I couldn't find any specific responses to push-processing comparisons with overexposing pertaining to expired stock. Edited February 11, 2024 by Gautam Valluri Adding more info
Site Sponsor Robert Houllahan Posted February 11, 2024 Site Sponsor Posted February 11, 2024 The general rule is to overexpose about a stop per decade when using expired film. I think that rating it at 100iso and processing normally achives the same thing as 200iso and a push +1 and may even produce a bit nicer result. 1
Pablo Cruz Villalba Posted February 29, 2024 Posted February 29, 2024 (edited) I would even rate it at 50 and develop it normally. After scanning and grading you will have more flexibility with shadows. Don't worry about highlights, film will take care of it easily. Edited February 29, 2024 by Pablo Cruz Villalba
Gautam Valluri Posted February 29, 2024 Author Posted February 29, 2024 Thanks for the tip, I will do another test roll at 50 ASA to see what it does.
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