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Thread: Pyro negatives and scanning

  1. #1

    Join Date
    Sep 1998
    Location
    Austin, TX
    Posts
    38

    Pyro negatives and scanning

    Looking to get into scanning my LF negatives. I've been a long time pyro user. Are there any problems scanning pyro negatives? Anything special you need to do or is it just like your standard B&W processing? thanks

  2. #2

    Join Date
    Sep 2009
    Location
    Portland, OR USA
    Posts
    718

    Re: Pyro negatives and scanning

    I don't handle them any differently. Density is density. If you scan in RGB and then convert to monochrome in Photoshop's channel mixer, you might see a slightly different spectral response, but there's no significant difference. With Pyrocat HD, the major density effect is to UV light useful to alternative processes, not so much the visible spectrum as far as scanning is concerned. In fact, after scanning nothing but Pyrocat-HD negatives for several years, I recently had a lab process some negatives. They use X-tol 1:1, and they nailed the processing time. The negatives scanned beautifully, and I handled them in exactly the same way I handle my Pyrocat negatives.

  3. #3

    Join Date
    Jun 2001
    Location
    Northwest of Chicago
    Posts
    1,307

    Re: Pyro negatives and scanning

    Quote Originally Posted by Peter Gomena View Post
    I don't handle them any differently. Density is density. If you scan in RGB and then convert to monochrome in Photoshop's channel mixer, you might see a slightly different spectral response, but there's no significant difference. With Pyrocat HD, the major density effect is to UV light useful to alternative processes, not so much the visible spectrum as far as scanning is concerned. In fact, after scanning nothing but Pyrocat-HD negatives for several years, I recently had a lab process some negatives. They use X-tol 1:1, and they nailed the processing time. The negatives scanned beautifully, and I handled them in exactly the same way I handle my Pyrocat negatives.
    Same here

  4. #4

    Join Date
    Sep 2016
    Location
    Milan
    Posts
    15

    Re: Pyro negatives and scanning

    you need to scan in RGB mode, so you can tune the conversion to b&w with channel mixer.
    If you scan in b&w mode it is possible that your scanner convert the yellowish into pure white and the Puro effect is cancelled.
    You can fine-tune every picture but it seems to me this is a waste of time. After several testing I decided to stick with one single receipt for all the images (and I develop a Photoshop Action for that.
    I do this for both scanner I use, Hasselblad and Nikon.

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