Archived posting to the Leica Users Group, 2003/11/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Richard, I would check my slides with a loupe as frequently, most scanners just don't pick up the detail that is there. The Canon sensor is quite good; probably the best sensor around 6mp, but that is not what film can pick up. Try going back to your slide, confirm the focus on your scanner, and after the scan use a rather large amount of USM on the file. Try something over 200, 1.5, 0 and you will find a lot of detail coming out. As for saturation, Astia would not be the film I would use for saturation, 100VS or Provia perhaps. In Photoshop you can add saturation which is no different than what the Canon is doing. But, your example demonstrates to us all the simplified work flow that digital creates: really good images with not much work compared to scanning film. Don dorysrus@mindspring.com - -----Original Message----- From: owner-leica-users@mejac.palo-alto.ca.us [mailto:owner-leica-users@mejac.palo-alto.ca.us] On Behalf Of Richard F. Man Sent: Wednesday, November 26, 2003 11:05 PM To: leica-users@mejac.palo-alto.ca.us Subject: [Leica] The limit of DSLR resolution... Not digital bashing as I will probably pick one up some times next year. Not digital worshipping either as I don't have one and just spent some $$$ or an M6 and a Noct'. Anyway, some interesting experiments this last weekend. We have some costuming friends came by and took some shots outdoor in the park, and then I set up the Studio flash setup in the house and shot some more pictures. A friend was shooting the indoor flash pics with his Canon D60. He tends to only shoot at around 2000x1300 (~2.5 MP) instead of the full 6MP since he doesn't normally print them out. For this shoot, I used Astia 100F, and as usual, I bulk scanned them (all 7 rolls) at around 2200x1400 resolution and then down sampled them for web. If someone wants a print, I rescan them at the full 4000dpi and print. Interesting things: first of all, the D60 color is more saturated (which is what he set it up for), and more importantly, more accurate. The NikonScan software tends to add blue when scanning but even looking at the slides themselves, Astia 100F does not have the "punch" and some of the accuracy. Second, the difference with the details are pretty amazing. For example: http://www.dmk26.net/tmp/IMG_0485.JPG vs. http://www.dragonsgate.net/pub/richard/tony/IMG018.jpg I did some minor USM sharpening for the web presentation (and a little unsharpening is always needed since I have ICE dust removal on), but it's not just sharper, but more details. We checked a few other pictures and the difference in the detail is consistent between the 2 cameras (actually 3 as I used both the M6 with the VC 75/2.5 and M7 w/ Summicron 50). I didn't use the 90/2 AA indoor since the flash sync is only 1/50 and I wasn't sure I get good result with the 90/2 because of that, but no doubt the difference is there too. He used a Canon 50/1.8 prime, which is about 80 mm equivalent on the D60. Since most 50mm lens are excellent, I think the difference in details is probably due to the resolution difference with the film vs. digital sensor. Now even though our resolutions are similar to start with, the fact that he did not use full 6MP may have an effect. It would be interesting to do some comparison using full 6Mp resolution. We plan to do that at some pints in the future. // richard (This email is for mailing lists. To reach me directly, please use richard@imagecraft.com) - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html