Perhaps slightly off topic...
As john_s mentioned, Potassium carbonate is deliquescent, i.e., it absorbs water vapor from the air, so over time it will seem to get weaker if you always weigh out a fixed amount. When mixing chemistry (Pyrocat Part B in my case) I heat more than I need in a...
For sale is my 150mm Nikkor-SW with original caps and retaining ring. I've never used it since I got it, and probably never will. Its 400mm image circle at f/22 provides considerable movements on 8x10 and will cover 10x12 according to Nikon's 1982 LF lens brochure.
This lens is in quite good...
Over the last few years I've gone through at least a half dozen (probably more) 50- and 100-sheet boxes of 11x14 Ilford Multigrade Classic and Warmtone (always glossy). This note describes differences I noticed between paper from 100-sheet boxes of Multigrade Classic I purchased in May 2025 and...
And $172 shipping.
It’s a little hard to imagine they’re going to turn much of a profit, if any, even if they sell out the first run.
It’s out of my league but I certainly wish them the best.
I placed some pieces of Post-It note labeled “NO!” on the wrong edge of my 4x5’s back. The notes have been there for several years and I haven’t made that mistake since. It’s best to trim off all the unglued parts of the Post-It so the edges don’t curl up with time - this will help the notes...
Not owning a camera that requires 122 film I have no horse in the race, but I just wanted to remind you that both Kodak and Ilford have had troubles with transfer from the backing paper onto the film in the past. Making suitable backing paper in this size may prove to be a formidable challenge.
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