Archived posting to the Leica Users Group, 2002/08/04
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Checking Irwin's chart, the 135 3.4 requires a rangefinder base of 69.7 to focus accurately. Worse, the 135 2.8 need a base of 84.6 to focus critically( the Noct only needs a base of 32.5). So, Mitch, you are right to conduct your experiments as even an M3 only has a base of 63.71. With that said, I still think that having the 135 3.4 matched to your M6 will help significantly. I can not get accurate focus with my 75 on my M6 body but focus is a snap on the M3. The conclusion I would draw is that the tolerances for cams and cam followers in your system all stack in the wrong direction and focus is never quite right. The Noct a F1 is not exactly a hot knife for very fine detail so a slight mis-focus will be hard to spot. But the 135 is still very good indeed with fine detail at 3.4 so a slight mis-focus screams that you screwed up. Thanks for sharing the pictures. I have some near identical shots of grasses at sunset that are not even close to yours as the &%$##& Japanese L lens did not handle the backlight near as well as the Leitz lens; and to boot on an SLR where I could see the flare and try to avoid it. Don dorysrus@mindspring.com - -- To unsubscribe, see http://mejac.palo-alto.ca.us/leica-users/unsub.html