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Old 8th June 2020, 07:33 PM
John King John King is offline
Join Date: Nov 2012
Location: County Durham
Posts: 2,291

Originally Posted by Martin Aislabie View Post
Film emulsion fractures easily with thermal shock.

So, in answer to your question - no I'm sure your first couple of seconds at wash water doesn't have to be at 38degC - but it will need to be 38 +/- 2~3C throughout the entire period - including the first couple of seconds.

One hears of many photographers who process their own film complain about grain - most are likely to be suffering from reticulation (fracturing of the film emulsion due to thermal shock)

Hope this helps

I have not seen reticulation for more years that I can remember. Modern emulsions are so robust they can stand quite severe thermal shock.
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