Archived posting to the Leica Users Group, 2014/01/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Glad your babies came home, Geoff. It sounds as if the work was well done. Jim Nichols Tullahoma, TN USA On 1/9/2014 8:09 PM, Geoff Hopkinson wrote: > My camera and Summilux M 50 ASPH. are just back from Germany after repair > from impact and I've shot a little to check the accuracy of the calibration > firstly. The physical aspects of the servicings are faultless. That was an > expensive fall in Barcelona, by the way. Thank heavens for insurance. > > I was told that the camera was serviced and calibrated first, then the lens > which was checked against the camera adjustments. I'm very pleased to say > that the focus adjustment is very very good, both of the RF compared to > magnified liveview and the lens at critical DoF settings. I tested at one > and two metres from f/1.4 down and I estimate from my tests that the > sharpest plane is perhaps within a couple of millimetres. Much closer than > probable variation when I'm handholding. > > I noticed some interesting additional aspects during testing. > Overall. focus peaking shows the focus plane shift very clearly as you > focus on a patterned target. > Operating with a loupe looking at the 10x liveview on the LCD (a very > artificial test) I can see that the range of 'in focus' is coarser than > with the RF. That is to say, with a clear target pattern, the RF is just > plain more accurate by far. > > I've been told more than once that the RF in the new camera is adjusted to > finder tolerances than ever before and with new equipment and also that the > technicians are finding that the new camera is sensitive to lens > calibration. > > One other item I noticed is that Lightroom 5 reported exactly the aperture > used from f/2 to f/8 with my 75. Typically those aperture estimates might > be within 1/2 to 1 stop. A happy coincidence perhaps > > Cheers > Geoff > http://www.pbase.com/hoppyman > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > > >