Archived posting to the Leica Users Group, 2012/03/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]The 75/1.4 is actually the hardest M lens to focus; it has less depth of field than the Noctilux and the focus requirements are more critical. This makes accurate focus hard. The 1.25 or 1.4 magnifiers are useful but do decrease rangefinder brightness and contrast. The 75 Summilux has quite a lot of focus shift. If properly adjusted, the focus point will be very slightly in front of the rangefinder point of focus, but as you stop down depth of field increases and contains the point of optimum focus. If you get it adjusted so that it focuses perfectly at f1.4 depth of field does not catch up with the focus shift until f 5.6. I have never seen a 75 Summilux that was built during the film era that did not need adjusting to focus properly on digital M cameras. > You have to be willing to practice, practice, practice and delete a lot of > mistakes. Practice does really help, and you'll probably still end up with an infuriating number of out of focus images, but I agree that when you get it right it gives really beautiful results. > But when you get it right, it is second only to the Noctilux for > absolutely beautiful low-light photos with wonderful bokeh. I think the out of focus rendition from the Summilux is both more predictable and better than both the f1 and f0.95 Noctis, but this is personal opinion only. In really low light f1 or f0.95 is simply better than f1.4, and although the focus difficulties of both increase, I find the Nocti easier to use than the 75 Summilux in really dim light. http://gallery.leica-users.org/v/freakscene/75+Summilux/sakura.jpg.html http://gallery.leica-users.org/v/freakscene/75+Summilux/fionn1.jpg.html http://gallery.leica-users.org/v/freakscene/75+Summilux/eggs+web.jpg.html http://gallery.leica-users.org/v/freakscene/75+Summilux/ Marty