Archived posting to the Leica Users Group, 2009/01/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Frank, my message misstated my intened import; I meant that to read: > effective focal length of the 50 Summicron = 70mm, to be exact, 69.2mm - > but with > the depth of field/focus of a 50mm. Do you know what happens to people when they retire? ;-) Seth ----- Original Message ----- From: "Frank Filippone" <red735i@earthlink.net> To: "'Leica Users Group'" <lug@leica-users.org> Sent: Friday, January 09, 2009 9:50 AM Subject: RE: [Leica] French girl near a blackboard... >A 50mm lens ALWAYS has the same DOF. Using it on a Minox, an 11x14 camera > or something inbetween. > > DOF is determined by the FL, not the sensor format. > > Other solution to the busy issue..... retire. Then you can do this all > day long. > > Frank Filippone > red735i@earthlink.net > > > Steve, I would love to have seen French [woman] near blackboard shot at > f/5,6, if possible. To see the difference in contrast/sharpness. Wide open > the DR's contrast is noticeably softer than curent Leica lenses; at 4 and > 5,6 there is very little difference. Also interesting in this imge is the > effective focal length of the 50 Summicron - 70mm - but with the depth of > field/focus of a 70mm., to be exact, 69.2mm > > I may have to begin LUGging by digest; finding it difficult to deal with > 150-200 emails a day :-( while still practicing law and other > things! > > :-) > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - http://www.avg.com Version: 8.0.176 / Virus Database: 270.10.5/1884 - Release Date: 1/9/2009 8:38 AM