But the fact is that you just confirmed my suspicions and for that I thank you. 'Development tables' are one of the most frustrating factors in analog photography. They ALL state that 100 should be processed LESS than 400. That seems to be the 'necessary' thing to say even if, in the real world, that is not the case.
Usually the slower the film, the less development needed to attain adequate contrast. There was another exception that I remember: Panatomic X which required considerably more development time than Ilford's Pan F does. There simply is no set formula here and each film type must be determined privately because development tables apparently are not all that accurate (or even in agreement with each other's).
Of course, it must be said, with emphasis, that exposure plays a part in the final contrast as well, and this exposure must be accurate in order to be able to compare film development times with the prospect of attaining consistent results. My exposures were exactly two stops apart and conform to the box speeds (which are accurate for these two films.)
Again, Konical, the difference is sufficiently trivial to 'make up' for the difference with enlarger filtration. But that difference goes the WAY that I thought I was experiencing and that is significant to me. - David Lyga
Last edited by David Lyga; 11-08-2012 at 09:47 AM. Click to view previous post history.