Archived posting to the Leica Users Group, 2012/03/31
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]On Mar 30, 2012, at 4:35 PM, Geoff Hopkinson wrote: > Steve it is very likely worthwhile to have your lens adjusted to the newest > standards for M8/9. Obviously this lens is very much worth some TLC. You > could get a CLA at the same time ;-) > Focus shift is certainly a characteristic that you need to take into > account in use but that doesn't invalidate correct adjustment. > If you do have your M9 adjusted at the same time they can compare where > each component lies within its tolerances in case it is possible to tweak > either for absolute best compatibility. Within tolerance is within > tolerance of course and every properly adjusted body should work properly > with every properly adjusted lens. Nevertheless I know that the Solms > people can and do make extra efforts to refine adjustments further. In the > immortal words of the Solms technician who checked my 50 and 75 with my M8 > upgrade "Your lenses are good! We can make them better" > > I have no personal experience with NJ but you can of course deal directly > with Solms if you choose. thanks Geoff, appreciated Steve > > Cheers, > Geoff > http://www.pbase.com/hoppyman > > > > On 31 March 2012 05:52, Steve Barbour <steve.barbour at gmail.com> wrote: > >> >> On Mar 30, 2012, at 12:30 PM, Richard Man wrote: >> >>> I think the proper terms is back focus. >>> >>> If the focus point changes as you change the aperture, then it's focus >>> shift and you are stuck. You can then decide to calibrate to an aperture >>> that makes the most sense to you, usually at wide open and hope the DoF >>> will cover for any errors in narrower aperture. >>> >>> Certainly I would do that. It's hard enough to focus at F1. Any type of >>> back or front focus and you are upping the odd of mis-focused shots. >>> >>> I believe this is one of the reasons why the Nocti /0.95 was created. >>> >>> You should test out whether it's focus shift. Just put the camera on a >>> tripod and photograph a yard stick at an angle. Take multiple photos >>> without changing the focus but only the aperture. >> >> >> thanks Richard, >> >> Steve >> >> >>> >>> On Fri, Mar 30, 2012 at 8:53 AM, Steve Barbour <steve.barbour at >>> gmail.com >>> wrote: >>> >>>> my Noctilux at f1 shows a small degree of retro/posterior focus on my M9 >>>> body. >>>> >>>> Can I fix this? How? Or should it the M9 body plus/minus the lens be >> sent >>>> to Leica for ideal calibration? >>>> >>>> >>>> to New Jersey or Solms? >>>> >>>> >>>> many thanks, >>>> >>>> Steve >>>> >>>> >>>> >>>> _______________________________________________ >>>> Leica Users Group. >>>> See http://leica-users.org/mailman/listinfo/lug for more information >>>> >>> >>> >>> >>> -- >>> // richard <http://www.richardmanphoto.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 >> > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information