Many times ICE scanning technology works fine, you just have to test it. Other times there is a big loss in IQ.
Here is an example of a glass stereo slide that showed lots of image loss.
Below: Scan with no ICE (It had some spotting done to it, so examples are not for dust spotting they are for image loss from ICE. I don't have the original slide handy to rescan with no spotting.)
Below scan with ICE
You may not be able to see it, but the fabric they are sitting on shows lots of loss as well as eyebrow loss on girl on right. (Don't know why one uploaded as portrait, both are landscape format.)
I put up on them Internet Archive so you can download higher res images.
https://archive.org/search.php?query=ICE%20Teoli
Epson ICE works good for some images. I have examples, but didn't put link as it has an ad for one of my books. As I said, TEST.
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