Archived posting to the Leica Users Group, 2004/06/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]To All who do Leica and USM: Something I have never understood--relation of USM to Leica lens quality. Most of us have paid dearly for our Leica lenses partly because they deliver the degree of sharpness that pleases us. When I scan with my Sprintscan 4000, those scans never look really sharp, certainly not like the slide from whence they came. Often, they look very unsharp, again compared with the slide. So then I do the USM bit, mostly through trial and error until I get something passable to these aging eyes. By then, I never feel like I have the same picture that is on the slide. I then wonder if I have a defective scanner. I wonder if, using the scanner doesn't turn into the great leveler of lens quality.. My questions are mostly rhetorical, since I don't plan to get rid of my Leica stuff, but still I wonder. And I guess the same question could be asked of color and contrast, since none of these really match the slide without the use of curves, etc. I believe Vuescan gives me less unsharp scans than Silverfast. Thanks for any insights...............Julian ----- Original Message ----- From: "Brian Reid" <reid@mejac.palo-alto.ca.us> To: "Leica Users Group" <lug@leica-users.org> Sent: Wednesday, June 09, 2004 12:27 AM Subject: Re: [Leica] That Leica Glow The command is "unsharp mask", not "unsharpen mask". It's a noun, not a verb. There's a very good explanation of it on the Luminous Landscape: http://www.luminous-landscape.com/tutorials/understanding-series/understanding-usm.shtml _______________________________________________ Leica Users Group. See http://leica-users.org/mailman/listinfo/lug for more information