Archived posting to the Leica Users Group, 2004/12/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Tried a Sigma 600/8 mirror with a 2x converter and couldn't see a sanguinary thing to focus on, there are obviously limits to this game. Seasons Greetings Douglas Still having fun with the 20D with a Super Angulon 21/4 and the 35/2. Ted Grant wrote: > Douglas Herr offered: > Subject: Re: [Leica] focusing the 20D with R lenses > > >> A couple of 10D and 20D users on photo.net have reported accuracy >> problems with these bodies and shallow DOF lenses like 80/1.4 and >> 180/2.0. This is not an issue of the ability to focus the viewscreen, >> it's an issue of flange/sensor/screen alignment.<<<<< > > > Hi Doug, > > My good fortune so far...... no problems wide open! 80-200 zoom, 21-35 > zoom, 35-70 zoom. 50 1.4, the 100 macro 2.8. And the 80 1.4 Summilux! > All these used wide open, also stopped down to f 8.0! And it was Ok to > manually focus at f 8.0. > > I even had a go with the 280 2.8 wide open then added the 1.4 extender > to see how it would look, it's kind of awesome! ;-) Because now the 400 > becomes 640 f4.0! I didn't have time to try the 280 with the 2X > attached @ 560 .... 896mm! :-) The really big test to come is the 280 + > 1.4 extender + 2X extender making it an 800 f 8.0 to become a 1280 f 8.0 > mounted on the Canon 20D !!!!!! :-) > > If we have some good weather over the next few days I'm going to try the > "1280 version! ;-) Will let you know how they look. > > ted > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > >