Hi all,

I was puzzled by some comments in these articles about the Apollo mission
regarding the resolution of color film being scanned. Anyone here know
what was being used, and why a 2800 ppi scan would be "well past the
grain" of a 6x6 frame, as is claimed in these articles?

http://apollo.sese.asu.edu/ABOUT_SCANS/index.html

http://apollo.sese.asu.edu/METRIC_PREVIEW/index.html

http://asunews.asu.edu/20070803_apollo

Thanks!

Neil