Archived posting to the Leica Users Group, 2014/02/22
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]You know exactly what it would be! KISS!! Tina On Sat, Feb 22, 2014 at 12:57 PM, Nathan Wajsman <photo at frozenlight.eu>wrote: > I'd love to hear Ted's perspective on this thread ;-) > > Nathan Wajsman > Alicante, Spain > http://www.frozenlight.eu > http://www.greatpix.eu > PICTURE OF THE WEEK: http://www.fotocycle.dk/paws > Blog: http://nathansmusings.wordpress.com/ > > YNWA > > > > > > > > > > On Feb 22, 2014, at 5:52 PM, Doug Herr wrote: > > > Frank Filippone wrote: > > > >>>> > > ( why there really is a > > fine focus adjust feature in higher end cameras.. camera AF is adjusted > by > > the user to nail down the precise focus location. > > <<< > > > > AF micro-adjust is on DSLR cameras so that the user can compensate for > the differences between the image plane at the AF sensor and at the image > sensor, and for differences in the phase-detect system's assumption of the > lens' focal length and the actual focal length (read: manufacturing > tolerances). A camera using the image sensor as the AF sensor eliminates > the image plane discrepancy and a phase-detect + contrast-detect system > such as used by the A7 eliminates the phase-detect system's focal length > assumption discrepancy. The A7 (and A6000) should have no need for AF > micro-adjustment, likewise the A7r which is contrast-detect only. > > > > > > Doug Herr > > Birdman of Sacramento > > http://www.wildlightphoto.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 > > -- Tina Manley http:// <http://tina-manley.artistwebsites.com/>www.tinamanley.com