Will S said:
To reduce contrast when do you pull the neg from the developer? I've got a print I'm trying to do right now that is too contrasty if I let the blacks appear in the developer and pull it when it looks right. I'm using Cachet RF with Maco SuperLith.
Also, I would swear that the fixer does bleach the highlights especially when super-fresh. I'm using TF-4 and the fixer turns purple which is disconcerting. Does more exposure or less increase contrast? Or does it have nothing to do with it?
In my (admittedly limited) experience, more exposure means the highlights and midtones come in earlier, so you can pull the print before the blacks take over. More developing gives more blacks, so a super-over-exposed print can have soft midtones and no blacks at all, or stay in a second too long and go all black.
If your fixer goes purple my guess is that it's carryover from an indicator stop bath
Any rapid fixer will bleach the highlights a little, even TF-4 (and OF-1 too). I use plain old-fashioned acid fix, sodium thiosulfate and sodium bisulfite only. Since you
need an acid stop bath with lith prints, I see no advantage to an alkaline fix. Saving a few minutes in the fixing and washing doesn't seem so important with 5 minute exposures and developing times up to twenty minutes