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Agfa APX 25 Reciprocity Failure for Long Exposures

K

Kitt

New Member
Good day,

Does anybody have information on reciprocity failure when using Agfa APX 25 film for long exposures? I have recently acquired some and wanted to try long exposures with a 10 stop ND filter. Specifically, I am interested in exposing for times up to 2 minutes.

Thank you for your responses,


Kitt
1CBF716A-2C4B-4E66-A65A-965EE9726D29.jpeg
 
From Photo.net
"Agfa does not recommend to make a correction in development. Agfa recommends to give 1.5 to 2 stops extra if your normal exposure time would be 10 to 100 seconds."
 
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