I use a sous-vide circulator to get the products ~1F above the recommended 102F for the shortest possible development time (3.5min) and never had any problems! The kit I use (cinestill) is a 2-bath process (Developer, and Blix) and not accounting for the time to get the products to 103F, developing a roll of C41 film takes less time than B&W and gives me more consistent results.
0_____0|2 years ago