Archived posting to the Leica Users Group, 2010/05/26
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Peter make sure that you say thank you to ANDREA not ANGELA ;-) I spoke personally a couple of times to the technician that calibrated my lenses (which were done after my camera had been given back). I offered to leave the camera behind to have the lenses adjusted to it, if required. He said that was not necessary as my camera was now measured to be identical to their test camera. From our conversation my understanding is that they try to adjust the camera to the centre of the acceptable tolerance range, basically to make it the same as their benchmark camera if you like. If your camera is then known to be adjusted as close to perfectly as possible, it should make any lens that is also adjusted as close to nominal as possible. I don't think it makes sense to have a lens or lenses that are only optimal on one camera (which by definition is non-standard) but this keeps coming up. I can only tell you that my Summilux 50 ASPH. and my APO Summicron 75 ASPH were perfect wide open at minimum distance on my M8 and now my M9. You might have seen even macro Elmar shots from me and I am very confident that the camera and lenses are spot on. The procedures and test equipment to calibrate the sensor positioning and focus are extremely exacting now as a result of learning from the start of M8 production and a lot of pixel peeping customers. Regarding your film M's, there is no sensor adjusting obviously but the rangefinders are the same of course. I don't know prices there, why not ask Andrea about CLA's when you are next in touch? Of course there are a number of capable servicing agents that do fine work with classic M bodies. At the very least, your M3 deserves a service if you don't know of any done to it recently. M6's obviously can be 20 years or more old too. I just noticed the link to the DIY rangefinder adjustment. I absolutely do not recommend that. Perhaps that's another thread. Cheers Geoff http://www.pbase.com/hoppyman On 26 May 2010 17:47, Peter Cheyne <geordiepete211 at yahoo.co.uk> wrote: > Thanks Slobodan, Geoff, and Frank, > > it's useful to hear your reasoned opinions. Geoff, you're right, my M8 is > at Solms now, so the 2 lenses and M8 will not be sent together. However, I > imagine they would be returned together, which is open to the sort of risk > I > think Slobodan and Geoff caution about. > > I've decided to send the lenses to Solms, based on Angela Frankl's offer to > have the technicians calibrate them together with my particular M8. This > is > what she said on the phone, and is the reason why she will hold the M8 > until > my lenses arrive there. > > I got the negatives back from my tape measure focus test. Viewed with a > loupe, they are all in focus, both on tripod and handheld, at 50cm, 180cm, > and 340cm. It's hard to see in more detail at the farther distances, > especially on the 35mm lens tests, so I will also scan the negs and view > them. It does seem the 90mm Tele-Elmarit has a lot more area in focus in > front than behind. I suppose this is more or less normal, is that so? > > I will scan with my Epson V700, which I always use, and haven't had a > problem with so far in terms of focus. Then again, a dedicated film > scanner > would help flatten the negs. Anyway, I am not unsatisfied with the V700 to > date. > > Perhaps the soft focus that Vince Passaro pointed out in this series comes > from the nature of the series. ( > http://www.flickr.com/search/?ss=2&w=73557746%40N00&q=Mww+&m=text ) I > was taking photos while walking up to people, slowing down, but not always > stopping, to photograph. > > Geoff, if I find, on looking closely at the test scans, that the M3 and/or > M6 probably needs RF calibrating, I would likely want to send it/them to > Solms too. You have some experience with Solms service and pricing, could > you tell me how much they charge for RF calibration? > > Peter Cheyne > > > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information >