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Thread: replacing Epson V750 glass & grains on the film

  1. #1

    replacing Epson V750 glass & grains on the film

    Hi folks

    I was given a beat-up Epson V750 scanner. As I started scanning 4x5s, the scratches on the glass drove me crazy.
    Has anybody have experience in replacing the glass? Or any other method to avoid this problem?

    Also, I shot Portra 160, why the negatives are so grainny? I will attached some examples.

    Thank you very much in advance. This has been a stressful process.

    Click image for larger version. 

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  2. #2
    Unwitting Thread Killer Ari's Avatar
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    Re: replacing Epson V750 glass & grains on the film

    You can try wet-mounting with Kami fluid, directly on the glass; it will take care of some grain issues and scratches, too.
    Also check your settings, film speed, development, etc to make sure the grain is actually coming from the scanner, not your film.

  3. #3

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    Re: replacing Epson V750 glass & grains on the film

    The excessive grain in the first shot looks like a classic case of an underexposed negative, so could have been bad exposure, or bad development as Ari noted.

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    Re: replacing Epson V750 glass & grains on the film

    Is that grain or digital noise ?

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    Re: replacing Epson V750 glass & grains on the film

    Quote Originally Posted by Ken Lee View Post
    Is that grain or digital noise ?
    A good point. Maybe it's both?

  6. #6

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    Re: replacing Epson V750 glass & grains on the film

    If we compare the scanned and digitally processed image with a close examination under a loupe, we can tell which it is: noise, grain or both.

    We have no idea how large are the areas you are showing us.

    Who developed the film ? Did they do a good job ? Even temperature needs to be maintained during the process, or we can increase the appearance of grain.

  7. #7
    jp's Avatar
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    Re: replacing Epson V750 glass & grains on the film

    The image may look better if you don't use the sharpening in the epson software. It may be amplifying grain. You may be able to wax or otherwise fill in the glass scratches.

  8. #8

    Re: replacing Epson V750 glass & grains on the film

    Quote Originally Posted by djdister View Post
    The excessive grain in the first shot looks like a classic case of an underexposed negative, so could have been bad exposure, or bad development as Ari noted.
    I think you are right. Negative looks underexposed. I had no idea on the connection between underexposure & grain

    Lesson learned!!
    thank you

  9. #9

    Re: replacing Epson V750 glass & grains on the film

    ya, i used medium sharpen and dust removal tools.
    will try another scan without these settings
    Quote Originally Posted by jp View Post
    The image may look better if you don't use the sharpening in the epson software. It may be amplifying grain. You may be able to wax or otherwise fill in the glass scratches.

  10. #10

    Re: replacing Epson V750 glass & grains on the film

    Quote Originally Posted by jp View Post
    The image may look better if you don't use the sharpening in the epson softwarew. It may be amplifying grain. You may be able to wax or otherwise fill in the glass scratches.

    wax? scratches are everywhere. Am I being unpractical to think of replacing the glass? have you heard of people doing it?
    How would you wax it?
    any tutorial I can find online to give it a try?

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