Archived posting to the Leica Users Group, 2015/04/14
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The focus shift is real, but the adjustment is the slightest movement of the ring, usually a hair toward infinity at wide apertures. I routinely use this with an M 240, which is the highest resolution thing it fits, and it is not disappointing. The behavior is no worse than a 75 Summilux. Chris is right that it is not a Summicron, but it is not designed to be. Dante > On Apr 12, 2015, at 11:00 PM, Leo Wesson <leowesson at gmail.com> wrote: > > Thanks Chris. Seems to be your experience was not uncommon. > > Leo Wesson > Photographer/Videographer > 817.733.9157 > www.leowesson.com <http://www.leowesson.com/> > > On Sun, Apr 12, 2015 at 9:55 PM, Chris Crawford < > chris at chriscrawfordphoto.com <mailto:chris at chriscrawfordphoto.com>> > wrote: > >> I used to have one. It has neat bokeh, but it has several issues that made >> me leave it at home in favor of a 50 Summicron most of the time. >> >> The Sonnar has serious focus shift. That means if you focus so that your >> camera?s rangefinder shows proper focus, the actual focus point may not >> match the RF at some apertures. Some of them were calibrated to be >> accurate at f2.8, as was mine. Used wide open, it front focuses several >> inches. Others were calibrated for f1.5, and used at smaller apertures it >> back focuses. Stop down a lot, and this isn?t an issue because of depth of >> field. >> >> I like a lens that ?just works? at al apertures. The Summicron does that, >> the Sonnar does not. >> >> The other issue is even stopped down, the Sonnar is not sharp at the >> edges. In the center it is very sharp. The Summicron I had was uniformly >> sharp across the whole image. It was just a better lens for my work. >> >> The Sonnar is cool for some things, like portraits, as long as you?re >> aware of the focus issues. The focus shift is NOT an internet rumor, it is >> real. I tested mine and it is VERY real. If you can deal with that and can >> afford to buy a lens you will not use for most things, then get one. >> >> I sold mine after I realized that in three years, I had used it just four >> times aside from testing it for focus accuracy. I couldn?t afford to keep >> a lens that I never use. >> >> -- >> Chris Crawford >> Fine Art Photography >> Fort Wayne, Indiana >> 260-437-8990 >> >> http://www.chriscrawfordphoto.com My portfolio >> >> http://www.facebook.com/pages/Christopher-Crawford/48229272798 >> Become a fan on Facebook >> >> >> >> On 4/12/15, 10:41 PM, "Leo Wesson" <leowesson at gmail.com> wrote: >> >>> Anyone using this lens? Thoughts? >>> >>> Leo Wesson >>> Photographer/Videographer >>> 817.733.9157 >>> www.leowesson.com >>> >>> _______________________________________________ >>> Leica Users Group. >>> See http://leica-users.org/mailman/listinfo/lug for more information >> >> >> >> _______________________________________________ >> Leica Users Group. >> See http://leica-users.org/mailman/listinfo/lug for more information >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug > <http://leica-users.org/mailman/listinfo/lug> for more information