Archived posting to the Leica Users Group, 2010/11/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hi Geoff, I see minimal difference between the 50 and 90, but the 75 makes quite a difference in the background. Jim Nichols Tullahoma, TN USA ----- Original Message ----- From: "Geoff Hopkinson" <hopsternew at gmail.com> To: "Leica Users Group" <lug at leica-users.org> Sent: Sunday, November 07, 2010 6:05 PM Subject: [Leica] IMG: 50 vs 90 vs 75 field of view at minimum distance >I posted recently on the advantages of the APO Summicron M 75 ASPH at > mimimum focus distance (.7m) compared to the APO Summicron M 90 ASPH (1.m) > and the 50 was mentioned as too close to the 75 in the same discussion. > Currently a bit house bound so I set up a controlled experiment in my > garden. Subject focus distances within approx +- 5mm (using a macro rail > type setup). All at f/4. These are uncropped (downsized for web of > course) > and identically processed. Not wonderful composition I know. Framed to > place > a detail to focus on within the rangefinder patch corner. You can just use > 'next' arrow from first frame if desired. > > Here's the 50 > http://gallery.leica-users.org/v/hoppyman/2/50.jpg.html > My 90 (set to 1m to simulate the APO 90's minimum) > http://gallery.leica-users.org/v/hoppyman/2/90.jpg.html > The 75 > http://gallery.leica-users.org/v/hoppyman/2/75.jpg.html > > > Cheers > Geoff > http://www.pbase.com/hoppyman > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > >