Re: Cleaning and a Question
HOFFMAN@wmich.edu
Thu, 06 Apr 1995 19:51:54 -0400 (EDT)
IMHO - Sounds right to me.
Scatter from occasional dust will reduce contrast, but not affect image.
However, a "film" of "dirt" will (if nonuniform) affect the image,
besides reducing overall light and reducing contrast by scattered light.
Richard Hoffman