Archived posting to the Leica Users Group, 2011/04/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Thanks, these older lighter designs do have a role, now to balance weight cost and quality ;-) I'm interested in the accuracy of the focus. I presume autofocus is not as easy as you woiuld like to think, but I'll find out soon Alastair > The 400/560 f/6.8 'modular' lenses are very similar in performance to > the slightly earlier f/5.6 versions. The f/6.8's are very slightly > better at the same stops in terms of contrast, but all suffer from > field curvature, which is not a big deal as the subject is usually > close to centered, and the rest of the image is out of focus. > > The f/6.8 versions weigh a lot less, and are much easier to handle > because of that and the slide focussing IMO. Some people like the > Televit or Focorapid focussing better, but the slide focussing is > fast and positive with a bit of practice. My hit rate shooting birds > in flight is a lot better with the 400/6.8 than with any autofocus > lens I've used to date. > > > >>Which would you choose: >>the modular system 560mm f5.6 or >>the longer 560mm f6.8? >> >>Any comments >> >>Alastair >> > > -- > > Henning J. Wulff > Wulff Photography & Design > mailto:henningw at archiphoto.com > http://www.archiphoto.com > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >