replacing Epson V750 glass & grains on the film

[yuexiachou29]

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.

[Ari]

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.

[yuexiachou29]

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.

Hi Ari,

Ive always wanted to try wet mounting, what would you say the pros & cons on wet-mounting vs. using film holder?

[djdister]

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.

[yuexiachou29]

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

[Ken Lee]

Is that grain or digital noise ?

[djdister]

Is that grain or digital noise ?

A good point. Maybe it's both?

[Ken Lee]

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.

[jp]

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.

[yuexiachou29]

ya, i used medium sharpen and dust removal tools.
will try another scan without these settings

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.