I am in the midst of doing a basic comparison between my Hasselblad and the new Kodak SLR Pro (14mb, full frame). I don't need a super accurate test, just reasonably fair. My work is half color, half b&w with the end product in books and large exhibition prints 20 to 40".
I invite suggestions and/or critiques of my approach as outlined here: I gave up the dark room several years ago after too many decades. So I must compare scanned film against digital RAW. Also, though it may invite scorn from some purists, I am comparing the actual tools I work with most of the time, not the ultimate options in lenses. These are: Hblad 203fe with 60-120 zoom Kodak SLRpro with Tamron 28-300. I take the test images from the same position and adjust the Tamron zoom factor to match the approximate vertical coverage of Hblad zoom. To avoid any focus hocus pocus I am measuring distances. I care mainly about the clarity issue --ie details and sharpness and less about color accuracy as this is more easily adjusted. The digital raw is 16 bit, 4500x3000 @ 300 rez which equals about 10" ht image. The 220 films, (CN400) and Ektachrome VS 120 are scanned on a Minolta MultiPro (a Nikon 8000 is also available). But here is where I need some advice. I believe I should scan to end up with the same 300 rez but to what file size? Here are two I have tried and the thinking behind each: 1. Scan the 2.10 x 2.10 area at maximum of 4800 dpi which gives an image size of 34" sq and a file size of 604 mb which is simply too unwieldy. 2. Scan at the nearest even dpi to approximately double the image size since the 220 film is a little over 2x the ht of the Kodak orig of 1" which means 3200 dpi and image size 22.7, file size 268. I stand ready for any further ideas. At the end, if any one is interested, I shall try to post the results on my web site, normancarver.com Thanks for any help, Norm Carver ---------------------------------------------------------------------------------------- Unsubscribe by mail to [EMAIL PROTECTED], with 'unsubscribe filmscanners' or 'unsubscribe filmscanners_digest' (as appropriate) in the message title or body
