Archived posting to the Leica Users Group, 2000/04/02
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I too have been disappointed often with infinity sharpness at hyperfocal settings. Softness in trees on the horizon, and the edge where the mountain tops meet sky, becomes soft. I also suspect that with designs with floating elements, when you set a shorter distance than infinity, you just optimized the lens for that distance rather than infinity -- I suppose that is why Hasselblad's first floating element designs had manual setting of the floating element. A while back, I picked up a used Leica Way from the 50's, which had an interesting section on depth of field. All the technical specs aside, for improved sharpness go one stop more conservative when setting a hyperfocal distance on the DOF scale, and for very high sharpness at infinity, go two stops more conservative. But, then again, those are 50's standards. Tom Schofield - ----- Original Message ----- From: "Mitch Alland" <malland@mac.com> To: "leica-users" <leica-users@mejac.palo-alto.ca.us> Sent: Sunday, April 02, 2000 8:52 PM Subject: [Leica] Forget about depth of field scales > >>>>> Timothy R. Kuntz > >What about the 'focus about 1/3 of the distance into the > >picture"? > > The Merklinger articles show convincingly that focusing at infinity will, in most cases of "general landscapes" lead to much sharper pictures. > > --Mitch > >