On Sun, 8 Feb 2004 11:39:31 +0000 Richard Kenward wrote: I am looking for information about how files from scan backs compare in colour gamut to medium speed Ektachrome film. If anyone can point me to maps that show the comparison this would be interesting.
Richard This may not quite answer your question, but there is a proper scientific report 'evaluating color-image quality, and digital image capture' at http://www.cis.rit.edu/research/mcsl/research/PDFs/Berns_art_digitize_lowres.pdf. This compares the colour response of a scan back, 2D area array camera (digital camera), scanned 10x8 Ektachrome film, and a special IBM ccd system with filters matching the cone responses of the human visual system. The scanback is described as having very poor color accuracy (as I remember). I discuss it at greater length on the pdf I sent you a while back. While most non-colour scientists (including me!) find colour science brain bending, it still seems to me to be the best way to try and understand what is going on in colour reproduction. I'm a bit pushed for time right now, but am pretty fascinated by this topic and will give some thought to a longer rambling. The broken link Thomas Holm gave was probably the Rochester Institute of Technology Image Permanence Institute at http://www.rit.edu/~661www1/. Tony Riley www.photosightdesign.co.uk www.sharpedgegallery.co.uk =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
