Hello! With suggestions from folks, I've started getting a handle on what scanner and printer to upgrade to in order to obtain digital prints from 4x5 B&W negatives. Now, I'm trying to decide on the computer upgrade that such processing will require.
Currently, I'm using a P4 with 512 MB of RAM. I anticipate the maximum size that I'll print is 16x20. After recommendations, I read Scanning and Halftones by Blatner, et.al. For a 4x enlargement to 16x20 and 360 dpi printer output, a 4x5 should be scanned at a minimum of 1440 spi, if I understand the reasoning presented in the book and on this forum. My current computer setup handles 8 bit files at this resolution reasonably well.
However, when I jump up to 2400 spi, digital processing is very slow with my computer setup. I imagine it will slow down even further when/if I start processing 16 bit files. I am trying to decide if I need 1 Gig, 1.5 Gig, or 2 Gig of RAM.
So, aside from extra scanning resolution that might be needed to handle cropping of specific negatives, do folks find that there are differences in high quality 16x20 prints if the files comes from 1440 spi, 2400 spi, or even larger scans? Thank you and best regards.