Hello,
I've started using D23 recently and I will shortly begin replenishing my litre bottle with DK-25R. On John Finch's Pictorial Planet website, and if I'm not misunderstanding anything, he writes that once the cycle of replenishment is initiated, development times should be increased by 10% for most films, and in his experience, 30% with HP5+ (a film that I use regularly). Why would this be? I would have thought that the replenishment with a solution containing more metol would speed up development, but there must be more to it. Is it to do with a change in alkalinity?
This is the page that I'm referring to:
Cheers,
I've started using D23 recently and I will shortly begin replenishing my litre bottle with DK-25R. On John Finch's Pictorial Planet website, and if I'm not misunderstanding anything, he writes that once the cycle of replenishment is initiated, development times should be increased by 10% for most films, and in his experience, 30% with HP5+ (a film that I use regularly). Why would this be? I would have thought that the replenishment with a solution containing more metol would speed up development, but there must be more to it. Is it to do with a change in alkalinity?
This is the page that I'm referring to:

Cheers,