What's this noise?

[Scott --]

Hi, all -

I've been noticing in a lot of my scans I have some speckly noise showing up - like in this one:
http://farm9.staticflickr.com/8437/7924656002_f3f09b3be7_o.jpg (http://www.flickr.com/photos/scott--/7924656002/)
Enough, Dad... (http://www.flickr.com/photos/scott--/7924656002/) by Scott -- (http://www.flickr.com/people/scott--/), on Flickr

I've cleaned the platen, and the negatives are clean, so I'm not sure where it's coming from. I'm scanning with an Epson 4990 - is this possibly the result of off-gassed fogging on the underside of the platen? Power surges? Anyone?

Thanks,
Scott

[Gem Singer]

Too much sharpening?

[Scott --]

Gem, I do very little sharpening in general, and I'm not even sure if I sharpened this one at all.

[photobymike]

maybe slight reticulation.... does it show up on the neg? i cannot tell from your scan..... just a thought

[Peter Gomena]

If you're using SilverFast, be sure you're not scanning in "draft mode." The checkbox is hidden in the "options" settings.

Peter Gomena