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Thread: Scanning overexposed B&W 4x5 negatives with SilverFast...

  1. #1

    Scanning overexposed B&W 4x5 negatives with SilverFast...

    Any scanning gurus in here using SilverFast?

    When scanning a B&W negative (4x5) that is overexposed about a stop or so I cannot get a good scan from SilverFast. Nothing seems to work. The interesting thing is that I can get a good scan using Epson Scan. Every time.

    Iíve tried resetting SilverFast. Iíve tried turning Negafix off. Iíve tried every slider. None seem to be able to reduce the exposure of the negative very well. Epson Scan - no problem!

    Anyone else experience this?

    Iím on a Mac. Using an Epson V850.

    Thank you!

    David

  2. #2

    Join Date
    Oct 2015
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    Re: Scanning overexposed B&W 4x5 negatives with SilverFast...

    Have you tried scanning to a linear file, then converting in PS? I use ColorPerfect for this step.

  3. #3

    Re: Scanning overexposed B&W 4x5 negatives with SilverFast...

    Quote Originally Posted by Alan9940 View Post
    Have you tried scanning to a linear file, then converting in PS? I use ColorPerfect for this step.
    Yes, I used the DNG 16bit option whereby SilverFast doesnít use any settings.

  4. #4
    Moderator
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    Jan 2001
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    Re: Scanning overexposed B&W 4x5 negatives with SilverFast...

    Are you using the Expert Mode in Negafix to set the highlight and shadow points to include the entire histogram?

  5. #5

    Re: Scanning overexposed B&W 4x5 negatives with SilverFast...

    Quote Originally Posted by Oren Grad View Post
    Are you using the Expert Mode in Negafix to set the highlight and shadow points to include the entire histogram?
    Yes, itís the overall brightness of the image. Iíll post an example here tomorrow.

  6. #6
    Tin Can's Avatar
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    Re: Scanning overexposed B&W 4x5 negatives with SilverFast...

    I am amazed how well very thin negs scan on Epson
    2022

  7. #7

    Join Date
    Apr 2020
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    Re: Scanning overexposed B&W 4x5 negatives with SilverFast...

    I overexposed a shot by.... a lot. I'm guessing about 9-10 stops. When I pulled it out of the fixer, I thought I'd screwed up the development, but the other two negatives were fine.

    Was able to get a good scan of it with SilverFast anyway (Epson v800, Windows).

    I don't bother with expert mode on negafix usually-- do a pre-scan, do basic color correction with negafix (if needed), then open the generic histogram window, and set the shadow/highlight endpoints manually. You'll get more grain than you would expect, but the image should come out usable.

  8. #8

    Join Date
    Feb 2008
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    Re: Scanning overexposed B&W 4x5 negatives with SilverFast...

    >> I cannot get a good scan from SilverFast. Nothing seems to work. The interesting thing is that I can get a good scan using Epson Scan. Every time

    Why not to scan with what works and be done with that?

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