Quoted By:
>I want to save them for archival purposes and eventually get some reprinted.
>all from PRINTS, no negs
Pretty sure almost any one talking these 1200+ dpi numbers are thinking negative not prints.
I use epson's software for scanning so you know when you preview and select the area you want to scan, I use that + dpi setting to show me the pixel value of the images. So say for a 8x10 reprint you'll want to scan in the short edge to be 2400 pixels. 16x20 and you'll want to scan it so the short edge comes in at 4800 pixels.
Example you want to take a 5x7 and up size it so you can print a 8x10. Well to get the 2400 pixels on the short edge you would only need to scan it at 480dpi make sense?