Scanning issue, help!

[ageorge]

Below is a 100% crop of a TMAX100 negative straight out of an Epson 4990 scanned at 2400 DPI with VueScan. I have also included the a whole image, below as well for scale. As you can see, I am getting these awful dark edges on some of the rocks here. These are very difficult to deal with. Anyone know the cause of these. They are definitely not on the negative. Any help would be greatly appreciated.

Thanks in advance,
-alan

100% Crop


The whole image

[Michael Mutmansky]

Alan,

Are you using multiscanning and/or dust removal of any kind?

It looks like the negative has moved in the middle of the scan to me. There is clear streaking in the grain in the sky areas, and it looks like it has the same axis of movement as the dark bands you are asking about.

---Michael

[Kirk Gittings]

Are you trying to run Digital Ice with a b&w?

[ageorge]

Are you trying to run Digital Ice with a b&w?

Not Digial Ice but I do have the "dust removal" set to medium in VueScan. I'll turn it off and see if that makes a difference.

Thanks,
-alan

[ageorge]

Alan,

Are you using multiscanning and/or dust removal of any kind?

It looks like the negative has moved in the middle of the scan to me. There is clear streaking in the grain in the sky areas, and it looks like it has the same axis of movement as the dark bands you are asking about.

---Michael

I do have the the "dust removal" set to medium in VueScan and I also have multi-scan turned on as well. I do see this on multiple negatives so I am not sure it would be movement.

Thanks,
-alan

[Michael Mutmansky]

Alan,

Change one variable at a time, and you'll find the culprit.

If you look at the foggy sea portion of the blowup, there is a streaking in the grain/density that looks like it has it's primary axis at about 15 degrees from vertical. Look carefully at the blowup. That may also be an artifact of the dust removal, but it could be an artifact of multiscanning as well.


---Michael

[ageorge]

Alan,

Change one variable at a time, and you'll find the culprit.

If you look at the foggy sea portion of the blowup, there is a streaking in the grain/density that looks like it has it's primary axis at about 15 degrees from vertical. Look carefully at the blowup. That may also be an artifact of the dust removal, but it could be an artifact of multiscanning as well.


---Michael

Thanks, I'll start eliminating things. I was hoping that it wasn't "normal" for my setup.

As for the streaking, this was a 2 minute exposure and that fog does come from moving water so it is possible that that is what is being recorded.

Thanks again,
-alan

[ageorge]

What does a Newton Ring look like?

-alan

[Michael Mutmansky]

Alan,

Is this a color scan from a B&W negative? If so, newton rings would look like somewhat concentric circles that have a slight rainbow effect to them. They're much easier to see in a color scan due to the rainbow effect.

If this is a B&W scan, the newton rings will be light and dark bands in circles, and they can be pretty subtle.

Either way, I'm not seeing any newton rings in the blowup.


---Michael

[Michael Mutmansky]

Here's some newton ring samples.