I'm getting some odd mottling in the skies of several of my 4x5 negatives this year. I'm a bit flummoxed, as I can't seem to figure out why. I've attached a few scans from negatives over the past couple of months, all with different lenses, and no filters. There was a problem with controlling the water temperature in the darkroom, which I thought might be the source, but I've been keeping a much tighter control on the temperature, and I still get some funky skies. I'm processing with hangers in tanks, with the same agitation regimen that I've been using for years. The only thing that I can think of is that I've starting using Ilford FP4 and HP5 lately, after years of TMY, but I can't figure out what that would have this kind of effect.
Has anyone here had any experience with these kind of mottled skies? Any advice would be gratefully received.
With thanks in advance,
Bruce
Bookmarks