Archived posting to the Leica Users Group, 2000/07/04
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Hello everybody, recently I started to use a Summitar 50/2 with a iiic. While producing a series of shots at different f-stops, I noticed that at f2 - f5.6 the sharpness in the edges of the image is rather poor. However, it increases with increasing f value and is ok from f5.6 to f8 onwards. I know that the performance of those lenses is not comparable to contemporary ones. However I'd like to know to what extent the low edge performance is 'normal' for the summitar. (I also own a 90/4 Elmar where the edges are ok regardless at any given f-stop). I'm thankful for hints of all kinds. Yours Jan ............................. Jan C. Schuller Pharmakologisches Institut Universität Zuerich Winterthurerstr. 190 CH-8057 Zürich tel : ++41 (0)1 635 59 63 fax : ++41 (0)1 635 57 07 NEW, HOT, COOL AND HYPER: CHECK MY SONGS AND GET MY NEW CD AT: http://www.mp3.com/jansel/