3 ms·
Darkroom chemicals versus natural environment? (Though maybe it's pollution or trace elements in organic materials causing the rust / pitting on the CT?).
by apercu 3y ago
Darkroom chemicals versus natural environment? (Though maybe it's pollution or trace elements in organic materials causing the rust / pitting on the CT?).
- klodolph 3y agoDarkroom chemicals have varying pH, both acid and alkaline, there’s various salts involved, and there’s a decent amount of metal-on-metal contact in development tanks (you load the film onto a metal reel, and the metal reel goes into a metal tank, and they rub against each other).
- apercu 3y agoFair, 90% of my darkroom experience was a stat cam and we used plastic tubs and rubber(ized?) rollers. They always stained but since I wasn't using metal...