Digital BW, The Print

At 10:04 AM 2/1/2002 -0700, you wrote:
>Alan,
>
>i wonder if the 2450 has fixed an earlier Epson scanner problem?
>
>the Epson 1640 has an inherent problem on larger format scans of a
>criss-cross and banding pattern showing up in light, even areas - skies,
>walls etc. especially from neg scans.
>
>this is caused by the scanner actually picking up the cross hatch pattern
>that makes up the cold cathode fluorescent flat tube in the lid. it's too
>close or not diffused enough in the 1640. you can see the pattern if you
>look closely at the illuminated area when it's on. in scans this pattern
>looks at first like banding in skies etc. but on closer inspection you can
>see the pattern of the tube.
>
>have you scanned larger negs? b&w or colour? noticed if this has occurred
>during your testing? (for a long time i thought it was the usual poor blue
>channel on a cheap scanner...)
>
>tim a
>
>
Tim,

Good point - some enlarger cold lights have this problem too.  I'll try
testing it.

AZ
Maker of Lookaround panoramic camera.

www.geocities.com/soho/gallery/8874/
         or
keyword.com lookaround