Interesting. It doesn't seem to folow a pattern with Fuji being quicker but with the difference narrowing until 1600 when it reverses. Actually one min at between 11.5 and 12.5 is fairly marginal but it is a worrying large difference at EI 400 which is the EI most people would develop a 400 film at for most of the time. I wonder what the explanation is?
pentaxuser
Hmm the Fuji times you quote seem short to me. Are these times for the same format film agitated the same way in the same dilution?
I have used the massive chart for this combo in the past and it's never led me astray...
http://www.digitaltruth.com/devchart.php?Film=Neopan+400&Developer=Xtol&mdc=Search
Neopan typically responds well to two main types of agitation: 5s per 30s and 5-10s per 60s. Depends on what the subject/scenes are on the film, developer, and type of contrast desired (which will be a noticeable amount higher than "normal" [Tri-X], in general).
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John_S, do you increase the developing time to compensate for the decreased agitation, or does the minimal agitation just bring down the contrast a bit?
Thanks for the input.
Neopan400 also responds very well to minimal agitation (2 inversions every 3 minutes or so). Contrast will be about right, not higher than Tri-X (as long as the developing time is not too long).
Neopan400 develops fast. As Barry Thornton said, "a bit more for good measure is a lot worse than not quite enough" (my paraphrasing).
Hmm, that depends on how much less development is given. Barry T was more normally talking about the impact on sharpness and resolution when he talked of over development.
I use a very soft head and under devloped negs are a lot harder for me to print well than one with a little too much. Slight over development is no big deal when it comes to printing if you are a decent printer. Sure it impacts on grain and resolution, but the impact is not as severe IMO as Barry T suggests in his books, particularly with larger formats. Now a really flat neg that needs more than G5 is a real problem in my experience, when it comes to getting rich tones!
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