Archived posting to the Leica Users Group, 2004/07/19
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I haven't read the article in the magazine named below... the following information from that article was emailed to me by a Canon photographer. Jim ----------------------- Photo Techniques, March/April 2004, has an article in which Neil Lipson tests the resolution of a Canon 10D versus a Canon 630, using the same target and even the same lens (a 50mm f1.8. He draws the following conclusions: 1.) "If you want maximum resolution, buy film and a very good lens". 2.) "My tests show that a 6 megapixel camera gives about one-third the resolution of film in the center portion of the lens, and about one-half the resolution of film at the edge. If you look at the worst-case resolution - which is the edge only - you?ll need a 12-megapixel digital camera to equal a 35mm film camera. If center resolution is a top concern, you?ll need about 20 megapixels to equal a 35mm body." 3.) "If you use a zoom - even a very good one - you probably won?t get 90 lp/m in the center" 4.) "Another surprise was that enlargements of the digital photo on the medium mode (not the high quality one) of the Canon 10D (about 4 megapixels), yielded beautiful 11X14 prints. A colleague took my file, cropped it, and enhanced the color only (with no sharpening to leave the resolution unchanged). The resulting print was indistinguishable from a color negative print, even though my lp/m readings were far different." --------------------- Aram Langhans wrote: <snip> > >