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02-17-2014, 08:30 AM   #1
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Bands in my scanned negative

I've noticed vertical bands when i scanned some negatives on my friends plustek 7200.
See below, about a third from the right side of the image.
What causes that? I dont see anything on the negative itself.

Thanks in advance




02-17-2014, 08:47 AM   #2
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There seems to be some discoloration on it too, so it might actually be the film. Try flipping it around in your scanned and see if the band gets flipped as well- that should help us identify the culprit

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02-17-2014, 12:07 PM   #3
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Are you scanning BW film in color mode? Why is it green in the middle. Try converting it to a grayscale and see if you notice the bands.
02-17-2014, 12:17 PM   #4
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I have seen similar bands with my Nikon Coolscan scanner. On that unit they seem to be related to edge of the scan frame vs. edge of the image frame.


Steve

02-19-2014, 07:27 AM   #5
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My dedicated 35mm scanner is a Canoscan FS 4000 US and because of its lack of,or insufficient shielding, I get similar bands if it is operated
too close to any source of electro-magnetic radiation. This was a well known and well documented fact with this scanner. When I'm scanning
with it I just move it well away from any speakers, printers,scanners, monitors or other computer peripherals and the problem disappears.
Your scanner could be having a similar issue.
Glenn
02-19-2014, 07:38 AM   #6
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QuoteOriginally posted by G and T Quote
My dedicated 35mm scanner is a Canoscan FS 4000 US and because of its lack of,or insufficient shielding, I get similar bands if it is operated
too close to any source of electro-magnetic radiation. This was a well known and well documented fact with this scanner. When I'm scanning
with it I just move it well away from any speakers, printers,scanners, monitors or other computer peripherals and the problem disappears.
Your scanner could be having a similar issue.
Glenn
Never thought of that! I guess having my 4490 sitting on the desk next to my bottom mounted 850w power supply for my PC could be the culprit.... good to know that it may not be broken!
02-19-2014, 03:59 PM   #7
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QuoteOriginally posted by G and T Quote
My dedicated 35mm scanner is a Canoscan FS 4000 US and because of its lack of,or insufficient shielding, I get similar bands if it is operated
too close to any source of electro-magnetic radiation. This was a well known and well documented fact with this scanner. When I'm scanning
with it I just move it well away from any speakers, printers,scanners, monitors or other computer peripherals and the problem disappears.
Your scanner could be having a similar issue.
Glenn
Thanks for posting this.


Steve

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