Originally posted by jeffkrol Actually w/ one interpolation (2X pixel count) you can make a pretty decent 8X10 out of it...
600 x 800 @ 72 dpi seems to break down faster as you size up.
BBear :
1600x 1200 @ 50 dpi = 32 X 24 inch image, at 100dpi = 16 x 12 inch image, at 200dpi = 8x6, ect
It's probably best to destructively resample down..... 1 orig copy, 1 "thumbnail" so to speak.....
I've seen some pretty decent 4x6 prints made from files not much larger than VGA (640 x 480).
I'd recomment to anyone that is handing out files to try the following experiment:
Take a file and size it to what your lab wants for a poof sized print. This will be in the 1200 x 1800 pixel range for a photographic printer (Fuji prints at 300 dpi, Noritsu prints at 320).
Now start downsizing the files in 25% increments, doing a save with a modified filename after each downsize.
Keep the filemanes simple and short so that you can flip the print and see which file is which from the back printing.
Keep doing this until you have files ranging from 1200x1800 down to perhaps 300 x 450, and send the whole lot off to your local minilab.
At this point, you will know first hand just how small a file has to be before a usable print can be taken from it.
I think you'll be shocked by how good the interpolation of minilab printers, especially Noritsu, is at making files that are too small look pretty good.