Doremus Scudder
3-Nov-2007, 07:14
Running some tests today with ascorbic acid added to double-strength PMK (to see if I can increase developer activity somewhat for expansions). I was using PMK 10ml A, 20ml B to 500ml water with an added 10ml of 5% ascorbic acid (2:4:100 + ascorbic acid to 0.1g/liter).
When transferring the sheets of film from the developer to the weak acid stop (half-strength or less Kodak Indicator Stop), I noticed a faint, but definite, fluorescent-type glow. the glow spread through the entire tray and illuminated the film sheets from behind. It lasted 4-5 seconds or so. The film seems unaffected.
Has anyone heard of this phenomenon? I'd love an explanation. It has never happened to me before using other developers (HC-110 and regular PMK mostly).
Thanks in advance.
Doremus Scudder
When transferring the sheets of film from the developer to the weak acid stop (half-strength or less Kodak Indicator Stop), I noticed a faint, but definite, fluorescent-type glow. the glow spread through the entire tray and illuminated the film sheets from behind. It lasted 4-5 seconds or so. The film seems unaffected.
Has anyone heard of this phenomenon? I'd love an explanation. It has never happened to me before using other developers (HC-110 and regular PMK mostly).
Thanks in advance.
Doremus Scudder