Lcam11 Posted February 5, 2012 Share #1 Posted February 5, 2012 Advertisement (gone after registration) Hi, I have a small problem, I hope someone can give an explanation: My Summarit 35 (new) and Elmarit 28 "Canada" seem quite spot on when focusing on my M8. With my Snapshot-Skopar 25 and Summicron 50 focus seem to be "off" somewhat, but in different direction. (I must compensate the Skopar towards "nearer" and the Summicron towards infinity to get good focus). What's the reason for this? Can a camera/lens combination be adjusted (calibrated?) to be right? But what happens then, is it possible that a combination that were correct before will then be "off"? I hope someone can give me some advice. It's not a big problem though, I have learned to live with it. Link to post Share on other sites More sharing options...
Advertisement Posted February 5, 2012 Posted February 5, 2012 Hi Lcam11, Take a look here focus off...what can be done?. I'm sure you'll find what you were looking for!
andybarton Posted February 5, 2012 Share #2 Posted February 5, 2012 Leica lenses can be calibrated to original spec, but the CV might be a different matter. If you send your camera body back as well, that too will be calibrated to factory settings. What you don't want is to have your lenses calibrated to an off body, otherwise they will be off on every other body. Link to post Share on other sites More sharing options...
Lcam11 Posted February 5, 2012 Author Share #3 Posted February 5, 2012 Ok, I see....I think.. Let's say that the body is correct, so I can send in just the Summicron (bought secondhand, it's from the 1990s) alone to have it back to factory specs? Or should I send in the camera as well just in case? My Summarit won't be off then? Link to post Share on other sites More sharing options...
earleygallery Posted February 5, 2012 Share #4 Posted February 5, 2012 The Skopar isn't rangefinder coupled of course, DOF is large and I've never had an 'unsharp' photo from mine. Obvious, but you are focussing it correctly? Link to post Share on other sites More sharing options...
Lcam11 Posted February 5, 2012 Author Share #5 Posted February 5, 2012 Hi James, you are right, and focusing this lens is not a big problem, it will be sharp anyway most of the time. I just learned that when I estimate the distance to 1,5 meters I set it to 1,2 meters instead...approx. ______ Geir Link to post Share on other sites More sharing options...
lct Posted February 6, 2012 Share #6 Posted February 6, 2012 Digital does not behave like film in matter of DoF. Even at medium apertures, misfocusings of 24 or even 21mm lenses are visible on sharp cameras like the M8 and this can make the difference between a good photo and a mediocre one. Link to post Share on other sites More sharing options...
lct Posted February 6, 2012 Share #7 Posted February 6, 2012 Advertisement (gone after registration) This is an extreme example for sake of illustration but this crop of closeup pic shows rather well that the zone of acceptable sharpness can be shallow on M8.2 (CV 21/4, f/4.5). BTW current CV 21 & 25 lenses are rangefinder coupled down to 0.7 meter. Link to post Share on other sites More sharing options...
fWord Posted February 6, 2012 Share #8 Posted February 6, 2012 This is an extreme example for sake of illustration but this crop of closeup pic shows rather well that the zone of acceptable sharpness can be shallow on M8.2 (CV 21/4, f/4.5). BTW current CV 21 & 25 lenses are rangefinder coupled down to 0.7 meter. The OP made a mention of the Snapshot skopar, which would be the older of the CV 25/4 lenses. When using hyper-focusing, the apparent zone of focus is also smaller on an M8 with its smaller sensor, compared to that of film or a FF sensor. For example, if the lens aperture was set at f/8 and you were attempting to hyperfocus on the M8, use the markings defined by f/5.6 (ie. one stop less DOF) instead of the markings defined by f/8. Link to post Share on other sites More sharing options...
Jeff S Posted February 6, 2012 Share #9 Posted February 6, 2012 Leica service calibrates the lens to its own standard, and separately calibrates a body to its own standard. The lens isn't calibrated to 'match' a given body, although some people think this is the case since the service department (at least Leica NJ in the US) routinely requests that both camera and lens(es) be sent in together. However, this is to ensure that each is calibrated to its relevant standard and that the whole system is optimized. Of course this pertains to Leica gear. Jeff Link to post Share on other sites More sharing options...
Lcam11 Posted February 6, 2012 Author Share #10 Posted February 6, 2012 The lens isn't calibrated to 'match' a given body, Thanks Jeff, that makes it more clear for me.______ Geir Link to post Share on other sites More sharing options...
IWC Doppel Posted February 7, 2012 Share #11 Posted February 7, 2012 Any ideas on cost ? Link to post Share on other sites More sharing options...
Jeff S Posted February 7, 2012 Share #12 Posted February 7, 2012 Any ideas on cost ? If still under warranty, none. When I bought a new M8.2 a few years ago, I sent it in with one new lens and two older (out of warranty) lenses. Leica NJ was generous enough to calibrate all for free. Don't know what the cost is otherwise, but a call to one of the reps will quickly answer your specific question. BTW, I always call (and email) a contact in advance of any service issue, to get a cost and time estimate, and to establish a relationship with someone there who can monitor and advise me on the status of my repair. I send the gear directly to that person. In one case the rep couldn't answer a technical question and put me on the phone directly with the technician working on my repair. I treat the situation much like an auto repair, and find that having a service rep relationship has many benefits. Jeff Link to post Share on other sites More sharing options...
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