Tri-X.Pyrocat.speed.test.04.25.jpg
I'm re-evaluating Kodak Tri-X 400 (120 format) when paired with Pyrocat HD, so I am looking for an optimal speed setting for this combination.
Negatives exposed at 400ASA exactly were less than optimal: too little shadow information retained. An extra half stop exposure helped a lot, but there was still minimal information in the shadows (this would have been difficult to print in the darkroom). The first exposure I consider ideal (good for scanning and optical printing) was a full stop over box speed: 200 ASA. (This image) Another half stop over that also gave a very good, totally usable negative.
I went as far as 2.5 stops OVER box speed and got a usable negative, but the mid-tones were getting flat and the highest values had less separation. It was possible, however, to make a good finished image from that "2.5 over" negative. See: flic.kr/p/2qZYixr
Tri-X.Pyrocat.speed.test.04.25.jpg
I'm re-evaluating Kodak Tri-X 400 (120 format) when paired with Pyrocat HD, so I am looking for an optimal speed setting for this combination.
Negatives exposed at 400ASA exactly were less than optimal: too little shadow information retained. An extra half stop exposure helped a lot, but there was still minimal information in the shadows (this would have been difficult to print in the darkroom). The first exposure I consider ideal (good for scanning and optical printing) was a full stop over box speed: 200 ASA. (This image) Another half stop over that also gave a very good, totally usable negative.
I went as far as 2.5 stops OVER box speed and got a usable negative, but the mid-tones were getting flat and the highest values had less separation. It was possible, however, to make a good finished image from that "2.5 over" negative. See: flic.kr/p/2qZYixr