Hi folks. I've started trying 5 sec+ exposures on TMX 100 4x5 and I'm getting some weird results when I scan them. On some I'm seeing a vertical wave pattern (when I'd expect to see only a horizontal one due to cloud and water movement) and on others I'm seeing a grid pattern. Easier to show than tell – here are two examples:
http://www.stepwise.ca/images/Grid_pattern.jpg
http://www.stepwise.ca/images/Vertical_pattern.jpg
Please ignore the Newton rings – I'm scanning with a cheap Microtek flatbed that I use just for proofing.
Scans of shorter exposures look fine.
I can't figure this one out. Any ideas?
Thanks!
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