romualdo Posted July 6, 2021 Share #1 Posted July 6, 2021 Advertisement (gone after registration) Has anyone tried to remove the glass from a standard M diopter (dioptre) ie M3-MA style - is it possible to dismantle I've had three: two +2s & one +1.0. Unfortunately I lost one of my +2s - gradually unscrewed & fell off (I've learnt my lesson). I consider these to be one of Leicas biggest ripoffs - exhorbitantly priced for what they are I'm just wondering if it's possible to remove the glass & have an optician insert a new one (though I fear that that the cost of a bespoke diopter would surpass that of an original one) Unless anyone here wants to swap a +2 for my +1? Quote Link to post Share on other sites More sharing options...
Advertisement Posted July 6, 2021 Posted July 6, 2021 Hi romualdo, Take a look here Leica M (not 10) Diopter dismantling?. I'm sure you'll find what you were looking for!
Helge Posted July 6, 2021 Share #2 Posted July 6, 2021 I looked at it and I couldn't find an easy way to dismantle it. To be honest, considering the risk of destroying the lens by dismantling it and even if it works, still the risk of paying a fortune for an optician I would just spend the 175$ and buy a replacement at Leica. 1 Quote Link to post Share on other sites More sharing options...
a.noctilux Posted July 6, 2021 Share #3 Posted July 6, 2021 In the good (?) old day, Leica used to 'offer' as part number 042-253.008 as empty mount for astigmatism correction to be glass-inserted by optician. I never had this empty mount, but this service was always 'offered' in my 1997 Catalog, for M6. In your place, Romualdo I'd just send a message to Leica Customer Service. Maybe you can have one for free 😉. 1 Quote Link to post Share on other sites More sharing options...
Helge Posted July 6, 2021 Share #4 Posted July 6, 2021 Astigmatism is a valid point, however how to you assure the correct angle of the correction lense, since it is screwed-in? Quote Link to post Share on other sites More sharing options...
a.noctilux Posted July 6, 2021 Share #5 Posted July 6, 2021 (edited) I can assume that as the user goes to his/her optician, and as the ring 042-253.008 has positive stop screwing in, his/her not too bad optician can ask him/her for use mostly vertical or horizontal pictures to set at correct angle the astigm. lens as requested. Sorry, not a solution anymore... Seen this, now opticians can not cut 10mm lens, too small ! Edited July 6, 2021 by a.noctilux 1 Quote Link to post Share on other sites More sharing options...
Helge Posted July 6, 2021 Share #6 Posted July 6, 2021 I do not have any specific preference for landscape or portrait, I would have an advantage for 50% and probably a major disadvantage for the other half. From my point of view there seem to be only solutions like Walter Eyepiece for astigmatism. Quote Link to post Share on other sites More sharing options...
spydrxx Posted July 6, 2021 Share #7 Posted July 6, 2021 Advertisement (gone after registration) I can't personally vouch for it, but I read recently that DAG, at the request of a customer, had fitted a diopter holder with a Nikon diopter instead of Leica glass, and that the cost was less than a new Leica one. 1 Quote Link to post Share on other sites More sharing options...
romualdo Posted July 7, 2021 Author Share #8 Posted July 7, 2021 11 hours ago, spydrxx said: I can't personally vouch for it, but I read recently that DAG, at the request of a customer, had fitted a diopter holder with a Nikon diopter instead of Leica glass, and that the cost was less than a new Leica one. Yes, I also have one of those Nikon diopters from DAG - forgot to mention that in my initial post Quote Link to post Share on other sites More sharing options...
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