marcg Posted August 28, 2017 Share #1 Posted August 28, 2017 (edited) Advertisement (gone after registration) Leica in their infinite wisdom have chosen not to fit an adjustable diopter to their latest M camera - (along with all of the other M's). Instead, you can shell out more of the folding stuff for a fixed correction diopter. However, as I understand it, they offer .5, 1.0, 1.5, 2.0 - and then 3.0 etc. There doesn't seem to be a 2.5. Does anyone know if one can piggy back a .5 with a 2.0? But in any event, I really don't understand why Leica can't fit an adjustable diopter - unless it is simply that they realise that most of their customers are probably of an age that they now need some kind of spectacles - and it is a nice earner for them - and also I don't understand why they don't cater for people who need a correction factor of 2.5. If you can piggy back 2 diopters then I have to say that carrying a £6000 camera around which also needs to carry £250 worth of diopter sticks in one's craw a little. Especially as unlike autofocus cameras, the diopter on an M10 functions far more than as a mere framing tool. Edited August 28, 2017 by marcg 1 Quote Link to post Share on other sites More sharing options...
Advertisement Posted August 28, 2017 Posted August 28, 2017 Hi marcg, Take a look here Diopters. I'm sure you'll find what you were looking for!
microview Posted August 28, 2017 Share #2 Posted August 28, 2017 Having needed a dioptre for M9, 240, 262 etc I found with the M10 even though focusing was fair without one, it was worth the cost and fitting the new-size dioptre. I am sure you know there's an inbuilt factor so you really need to try before you buy. Maybe Leica feels there's little effective difference between 2 and 3. Quote Link to post Share on other sites More sharing options...
marcg Posted August 28, 2017 Author Share #3 Posted August 28, 2017 Thank you for this but I'm afraid that it doesn't address the issue. I am using the new diopter which I purchased in size 2.0. I would like a 2.5. A 3.0 is too strong. So far as what Leica thinks about the difference between 2.0 and 3.0 - my eyes tell me a different story. Which of us is right? Can't be me - I'm only a customer, after all. 1 Quote Link to post Share on other sites More sharing options...
Luke_Miller Posted August 28, 2017 Share #4 Posted August 28, 2017 Walter makes Leica diopters in .25 increments. http://walterleica.com/walter-contrast-lense/ 2 Quote Link to post Share on other sites More sharing options...
marcg Posted August 28, 2017 Author Share #5 Posted August 28, 2017 That is very helpful. I'll call them. Thank you very much Quote Link to post Share on other sites More sharing options...
marcg Posted August 29, 2017 Author Share #6 Posted August 29, 2017 I'd still be interested to know if you can piggy back the diopters Quote Link to post Share on other sites More sharing options...
Luke_Miller Posted August 29, 2017 Share #7 Posted August 29, 2017 (edited) Advertisement (gone after registration) I have several of the Leica diopters which fit the models prior to the M10 (which has a larger eyepiece). Mine do not have a thread on the outside that would accept a second diopter. If you are far-sighted try an eyepiece magnifier. In my case using a Leica eyepiece magnifier changes the diopter correction I need. A +1.0 on the camera becomes a +1.5 with the magnifier. I don't know the reason, but the effect of the magnifier seems to be to bring the image in the viewfinder closer (and larger) so I need additional correction in order to focus properly. So if you need something between +2 and +3 adding a magnifier might make the +3 work. Edited August 29, 2017 by Luke_Miller 1 Quote Link to post Share on other sites More sharing options...
jaapv Posted August 29, 2017 Share #8 Posted August 29, 2017 I'd still be interested to know if you can piggy back the diopters Probably only by using Superglue. There is no connecting thread, AFAIK. Quote Link to post Share on other sites More sharing options...
albertknappmd Posted August 29, 2017 Share #9 Posted August 29, 2017 I have several of the Leica diopters which fit the models prior to the M10 (which has a larger eyepiece). Mine do not have a thread on the outside that would accept a second diopter. If you are far-sighted try an eyepiece magnifier. In my case using a Leica eyepiece magnifier changes the diopter correction I need. A +1.0 on the camera becomes a +1.5 with the magnifier. I don't know the reason, but the effect of the magnifier seems to be to bring the image in the viewfinder closer (and larger) so I need additional correction in order to focus properly. So if you need something between +2 and +3 adding a magnifier might make the +3 work. I had the same experience with diopter and magnifier but cannot really explain it! Albert Quote Link to post Share on other sites More sharing options...
jaapv Posted August 31, 2017 Share #10 Posted August 31, 2017 I'm not sure, but the native -0.5 of the eyepiece is meant to facilitate accomodation between the virtual distance of the rangefinder patch (which is 2m) and the background. If you change the focal length of the viewfinder by adding a magnifier, you are sure to alter the balance between fore- and background, which will change the needed correction.-I think... Quote Link to post Share on other sites More sharing options...
tobey bilek Posted August 31, 2017 Share #11 Posted August 31, 2017 I have special glasses for computer, why not for camera? Computer glasses work on camera, but not well for distance. Solution being computer correction for camera eye and other for distance. Since you need but .5 change, lower or raise camera eye lens .5 and leave the other alone. Sounds expensive, but astigmatism is taken care of if you have it, and one pair is good good for multiple cameras. Quote Link to post Share on other sites More sharing options...
Rafael Jimenez Posted December 6, 2020 Share #12 Posted December 6, 2020 On 8/28/2017 at 6:18 AM, Luke_Miller said: Walter makes Leica diopters in .25 increments. http://walterleica.com/walter-contrast-lense/ Quote Link to post Share on other sites More sharing options...
Rafael Jimenez Posted December 6, 2020 Share #13 Posted December 6, 2020 Walter leica is very good information. I need 2.50 and Leica does not think about that. Quote Link to post Share on other sites More sharing options...
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