Hi Ron

For C41 and RA4 developers is there a shelf life that one should be aware of? I just spoke to someone who should know and he
stated 10 month timeline.
If this is true, how would one stockpile these chemicals with frozen paper?
FWIW I was thinking of purchasing a stock of C41 chemicals and colour negative film , and was thinking that enough for 5-8 years of imaging and processing.

If what this person says is true , how would I be able to develop the film into the future ?


Quote Originally Posted by Photo Engineer View Post
All dry, crystalline chemicals can be frozen AFAIK. Stock solutions should not be frozen, nor should concentrates.

Chemical prices will go up, as the common use of many of these was photography and as use declines price goes up.