Thanks for the info, Paul. I use QTR not the Epson driver, and so I'm not very familiar with the latter.
To the original poster, for prints less than 30", it's not hard to have a scan from 4x5 that'll give 720 dpi at output size. Today, digital storage is cheap and many computers can easily handle the big images. Why throw resolution away if you have it? Why use interpolation if you don't have to?
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