Archived posting to the Leica Users Group, 2014/01/09
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]+1 Happy Shooting Geoff ! Amities Philippe Le 10 janv. 14 ? 05:30, Jim Nichols a ?crit : > 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 >> >> >> > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information One sees clearly only with the heart. What is essential is invisible to the eye. Antoine de Saint Exup?ry in Le Petit Prince. NO ARCHIVE