Archived posting to the Leica Users Group, 2010/11/07
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]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