Guy writes: > I'm into paper negatives these days and I've just completed a 20x24 > pinhole box which I'm using with B&W paper. It creates strange worlds > where the skies are deep black and where the landscape is glowing from > within. I think I'll keep them as negatives. They look even greater > when lit from behind with a light box. Have you ever feel the desire to reverse process the B&W negs to produce positives Guy? The formulae is quite simple - expose, develop, bleach in a sulphuric acid (0.5%) potassium bichromate(0.5%) solution, wash with a 10% sodium sulphite solution (silver solvent) , wash, fog then redevelop. karl