> I had some of these negatives scanned by a bureau through an > Imacon Flextight machine > I understand the problem. Light in a scanner is highly collimated - > the light beams are nearly perfectly parallel. So the grains don't > just block the light - they scatter it creating greater apparent > density. The so-called "Callier Effect." Hum... I believe the light source in the Imacon is a diffuse light source (OSRAM L 8W/12-950 Lumilux De Luxe Daylight 5400K lamp), not a point light source? If so, that is to your advantage! It wouldn't be "parallel" light (as you call it), but diffuse...and I believe the effect would be the opposite you are talking about. Austin
Message
RE: [Digital BW] Excessive grain in scanned images
2002-01-26 by Austin Franklin