Originally Posted by Constant Phil

87MP on 35mm

320 pixels x 320 pixels is 0.1MP per square millimeter. 35mm film is 24 x 36mm, or 864 square millimeters. To scan most of the detail on a 35mm photo, you'll need about 864 x 0.1, or 87 Megapixels

Originally Posted by Grapesoda

that depends on the scan. and what is being printed, was it shot 135 or medium format 6x7, 6x9 or 2 1/4...large format 5x7, 8x10 or 11x14 and the playboy centerfold were shot with some weird camera.... see? do not bet on it.... way to many variables...

let's just say if you scanned a photo shot on a 135 with 400 speed film you would think's it's grainy and soft, not crisp. and be very bummed. unless it was print size of say 5x7

Originally Posted by Grapesoda

yes however the medium you are scanning will not have the information you think you are going to scan. was not recorded with 135 film and emulsions. not enough latitude or resolution in the contrast with the technology. you will have a great scan of a blurry grainy image.

and dude, awesome math save... impressive