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> Adox CHS Art 100 |
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#1
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Adox CHS Art 100
I have a Toyo 8x10 camera on loan for a while and plan on using Adox CHS Art 100 sheet film.
Has anyone used this film in sheet format and is able to pass on any useful processing tips? I was thinking of using my current standard developer, PMK Pyro, to which Silverprint claim the film is "particularly suited".
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Roy ------------ The Golden Fleece - Home of The Creative Camera Archive and Real Photographs and |
#2
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Roy, I use it in 5 x4 , 5 x 7 and 10 x 8 formats. It is very nice stuff.
Close to HP5+ in terms of contrast, grain and processing times. Close to FP4+ in terms of speed and sharpness. It suffers from reciprocity failure. I have found that if the meter indicates a one second exposure and you actually give one second, you will underexpose. So for one second I give two, and if the meter says two seconds I give five. The emulsion is quite fragile when wet, so handle with care. In sunny conditions I rate the film at 50 and develop at 20 degrees C. in a tray either in Rodinal 1+50 for 12 minutes or Pyrocat HD at 2+2+100 for ten minutes. Stick to times you would use for HP5+ or about 25% more than you would use for FP4+ and you won't go far wrong. Alan Alan |
#3
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Alan, thank you, that is very helpful and exactly the kind of information I need.
I had read about the fragility of this emulsion and your comments confirm it. As for reciprocity characteristics, I guess this is to be expected in a film of this type and - as I shall be using a lens with a maximum aperture of f18 - I shall need to compensate extensively! The film arrives from Silverprint tomorrow.... Many thanks.
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Roy ------------ The Golden Fleece - Home of The Creative Camera Archive and Real Photographs and |
#4
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Roy -
I would also emphasize the softness of the emulsion when wet. It can scratch easily and small pieces can even come off if handled roughly. I would recommend only developing one sheet at a time if you are doing tray development. Despite that, I really like the film and it is perhaps the favorite of the three films I regularly use. If there is a "must get" shot then I usually make two exposures - but that is much easier to do in roll than sheet film. Mark
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