I just shot a roll of forte 120 b&w film (EI 200) and none of the developers I have on hand are listed in the data sheet. Anyone know what the development time would be with ilford perceptol or ddx - or do I need to go out and mix up some d76 :-(

thanks

mari

-- Mari Shopsis (meshopsi@chickmail.com), May 16, 2000

Answers

www.phototec.de offers a development times calculator. For FP 400 at EI 200 (gamma 0,55), this calculator recommends 9 1/4 minutes in Ilford Perceptol stock solution (as opposed to 12 minutes for EI 400, gamma 0,62), both for 1-minute rythm at 200C. For Perceptol 1+3 the times are 15 1/2 minutes and 20 minutes, respectively. There is a disclaimer identifying these values as extrapolations on the basis of manufactuer's data and a mathematical model. However, it's better than nothing. If you need data for other temperatures, rythms, or gammas, visit the above URL. Although the calculator is in German (Entwicklungszeitenrechner), I believe you will be able to guess what to enter where.

-- Thomas Wollstein (thomas_wollstein@web.de), May 16, 2000.

Mari.. have a look over at http://www.digitaltruth.com/

The massive development chart quotes 10mins for Forte 200 and Perceptol.

-- Nigel Smith (nlandgl@eisa.net.au), May 16, 2000.