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  1. #1
    bmac's Avatar
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    Reciprocity Characteristics of JandC400

    The J&C site lists the following [font=Arial]Reciprocity Characteristics[/font] for JandC 400.

    [font=Arial][size=3]To 1/2 second - no adjustment[/size][/font]
    [font=Arial][size=3]1 second - 1 stop[/size][/font]

    [font=Arial][size=3]10 seconds - 2.5 stops[/size][/font]

    [font=Arial][size=3]100 seconds - 3 stops[/size][/font]
    [font=Arial][size=3][/size][/font]
    [font=Arial][size=3]For those who have used this film, do you believe this is correct? If not, what are your times?[/size][/font]
    [font=Arial][size=3][/size][/font]
    [font=Arial][size=3]Thanks,[/size][/font]
    [font=Arial][size=3]Brian[/size][/font]
    hi!

  2. #2
    Alex Hawley's Avatar
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    So far they've worked for me Brian. I've done a lot more with J&C 200 than 400, but the numbers are similar, though not exactly the same. Between the three forums I watch, APUG, Large Format, and Azo, I have yet to see someone report a problem with reciprocity on either film.
    Semper Fi & God Bless America
    My Photography Blog

  3. #3
    David A. Goldfarb's Avatar
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    That should be about right. Before T-grain films reciprocity was pretty similar for all b&w films.
    flickr--http://www.flickr.com/photos/davidagoldfarb/
    Photography (not as up to date as the flickr site)--http://www.davidagoldfarb.com/photo
    Academic (Slavic and Comparative Literature)--http://www.davidagoldfarb.com



 

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