JazzDoc Posted January 29, 2012 Share #1 Posted January 29, 2012 Advertisement (gone after registration) I'd like to pose a question...I recently added a -1.5 correction diopter to my M9's viewfinder. For those who also use a corrective diopter lens, how do they deal with the problem of how to apply a 1.25 or 1.4x viewfinder magnifier for lenses with focal lengths over 50mm since the diopter lenses aren't threaded to receive the magnifier? Link to post Share on other sites More sharing options...
Advertisement Posted January 29, 2012 Posted January 29, 2012 Hi JazzDoc, Take a look here Diopter Correction Lens + Viewfinder Magnifier?. I'm sure you'll find what you were looking for!
businessasusual Posted January 29, 2012 Share #2 Posted January 29, 2012 My diopeter lens can be threaded into my 1.25x Magnifier, no problem. Both are Leica products, not copies. Magnifier first with diopter threaded into that? Hope I'm understanding your question correctly. (I also use 50mm Lux) Link to post Share on other sites More sharing options...
JazzDoc Posted January 29, 2012 Author Share #3 Posted January 29, 2012 My diopeter lens can be threaded into my 1.25x Magnifier, no problem. Both are Leica products, not copies. Magnifier first with diopter threaded into that? Hope I'm understanding your question correctly. (I also use 50mm Lux) Thank you very much, Karina. So first you unscrew the diopter, then screw in the magnifier and then re-apply the diopter over that. Got it, and thanks again! Link to post Share on other sites More sharing options...
chris_tribble Posted January 29, 2012 Share #4 Posted January 29, 2012 That's the approach - though I have to say that the diopter alone is enough for me and I don't use the magnifier anymore. Link to post Share on other sites More sharing options...
Double Negative Posted January 30, 2012 Share #5 Posted January 30, 2012 You might want to check out my review of the Walter RX Eyepiece. I used to use a magnifier to help focusing, but my astigmatism didn't help as it was just magnified (and a diopter wouldn't help)... The Eyepiece solved all of MY problems and I no longer use a magnifier. Link to post Share on other sites More sharing options...
JazzDoc Posted January 30, 2012 Author Share #6 Posted January 30, 2012 You might want to check out my review of the Walter RX Eyepiece. I used to use a magnifier to help focusing, but my astigmatism didn't help as it was just magnified (and a diopter wouldn't help)... The Eyepiece solved all of MY problems and I no longer use a magnifier. Thanks, Double Negative - will do. I have heard of these. Appreciate the lead. Link to post Share on other sites More sharing options...
jaapv Posted January 30, 2012 Share #7 Posted January 30, 2012 Advertisement (gone after registration) I'd like to pose a question...I recently added a -1.5 correction diopter to my M9's viewfinder.For those who also use a corrective diopter lens, how do they deal with the problem of how to apply a 1.25 or 1.4x viewfinder magnifier for lenses with focal lengths over 50mm since the diopter lenses aren't threaded to receive the magnifier? Simple I don't use magnifiers... Link to post Share on other sites More sharing options...
Printmaker Posted January 30, 2012 Share #8 Posted January 30, 2012 I picked up a 1.33X Magnifier with a built-in adjustable diopter from PopFlash Photo a few years back. I think the brand is MagnaPearls but, because it is home in a bag I'm not certain. I works fine but, like all magnifiers, it is just another two surfaces to keep clean... and I've given up and just wear my glasses all of the time. Link to post Share on other sites More sharing options...
Bill Allsopp Posted January 30, 2012 Share #9 Posted January 30, 2012 You got GAS again Doc? Link to post Share on other sites More sharing options...
JazzDoc Posted January 30, 2012 Author Share #10 Posted January 30, 2012 Simple I don't use magnifiers... Cool! Then I need to buy a set of your eyes! I picked up a 1.33X Magnifier with a built-in adjustable diopter from PopFlash Photo a few years back. I think the brand is MagnaPearls but, because it is home in a bag I'm not certain. I works fine but, like all magnifiers, it is just another two surfaces to keep clean... and I've given up and just wear my glasses all of the time. On some SLR's you can do that and still see the whole frame. Not with the M9. As it is I have to guess what's in the lower right hand corner on the other side of that hood!! You got GAS again Doc? You better believe it, Bill! Great to see you. I'm having a ball with this kit. All thanks to you. Link to post Share on other sites More sharing options...
Printmaker Posted January 31, 2012 Share #11 Posted January 31, 2012 On some SLR's you can do that and still see the whole frame. Not with the M9. As it is I have to guess what's in the lower right hand corner on the other side of that hood!! The 1.33X only works on 50/75/90/135 on a M9. The 28 and 35 are problem lenses with this magnifier. I tend to use it with my 90 - when I remember to bring it along. My 135 has bug eyes, so no need. I cannot see the 28 mm frame while wearing glasses so, even though the 28 is one of my preferred focal lengths, I do not use one on the M9. But the camera is a joy to use with a 35 Summicron - even wearing glasses. Link to post Share on other sites More sharing options...
Guest #12 Posted January 31, 2012 Share #12 Posted January 31, 2012 I picked up a 1.33X Magnifier with a built-in adjustable diopter from PopFlash Photo a few years back. I think the brand is MagnaPearls but, because it is home in a bag I'm not certain.... Japan Exposures formerly Megaperls Link to post Share on other sites More sharing options...
thighslapper Posted January 31, 2012 Share #13 Posted January 31, 2012 I also have -1.5 dioptre(s), Leica 1.25x and 1.4x mags .... and Japan Exposures 1.15 and 1.35x.... Fiddling about unscrewing and swapping round the dioptre and leica mags is a real pain. Invest in a Japan Exposures 1.35x with variable correction...... Despite what other luddites may say about lack of contrast, dim images etc etc etc. with most magnifiers, this yields a very well corrected and bright image, plus you can adjust it exactly for both distance and near to ensure a perfectly sharp image. Mine stays on permanently .... it's usable (just) with 28mm lenses and above. Below that I tend to use my WATE with an external finder...... Link to post Share on other sites More sharing options...
JazzDoc Posted January 31, 2012 Author Share #14 Posted January 31, 2012 I also have -1.5 dioptre(s), Leica 1.25x and 1.4x mags .... and Japan Exposures 1.15 and 1.35x.... Fiddling about unscrewing and swapping round the dioptre and leica mags is a real pain. Invest in a Japan Exposures 1.35x with variable correction...... Despite what other luddites may say about lack of contrast, dim images etc etc etc. with most magnifiers, this yields a very well corrected and bright image, plus you can adjust it exactly for both distance and near to ensure a perfectly sharp image. Mine stays on permanently .... it's usable (just) with 28mm lenses and above. Below that I tend to use my WATE with an external finder...... Thanks for the lead! Some great possibilities in this thread. Appreciated. Link to post Share on other sites More sharing options...
thighslapper Posted January 31, 2012 Share #15 Posted January 31, 2012 oops.... I've been a bit optimistic with framelines and the 1.35x...... just checked and 35 and above is ok, 28 is just outside view but still usable with a bit of guesswork.... the original blurb which I recalled from their website is wishful thinking... Link to post Share on other sites More sharing options...
JazzDoc Posted January 31, 2012 Author Share #16 Posted January 31, 2012 You might want to check out my review of the Walter RX Eyepiece. I used to use a magnifier to help focusing, but my astigmatism didn't help as it was just magnified (and a diopter wouldn't help)... The Eyepiece solved all of MY problems and I no longer use a magnifier. Question for you, Double Negative - if I were to order the Walter Rx Eyepiece, do I just have them simply copy the prescription for my right (shooting) eye or must the optometrist / ophthalmologist make an allowance/adjustment on that prescription for the sighting of the viewfinder patch which is up so close? Hope you get the gist of this question... oops.... I've been a bit optimistic with framelines and the 1.35x...... just checked and 35 and above is ok, 28 is just outside view but still usable with a bit of guesswork.... the original blurb which I recalled from their website is wishful thinking... Thanks for the clarification, thighslapper. Link to post Share on other sites More sharing options...
Double Negative Posted February 1, 2012 Share #17 Posted February 1, 2012 Question for you, Double Negative - if I were to order the Walter Rx Eyepiece, do I just have them simply copy the prescription for my right (shooting) eye or must the optometrist / ophthalmologist make an allowance/adjustment on that prescription for the sighting of the viewfinder patch which is up so close? Hope you get the gist of this question... Simple - give them the prescription for your shooting eye. No adjustment, etc. needed! That's exactly what I did and it's spot-on. I kind of lucked out and just had a fresh eye exam - thus had my prescription handy. Link to post Share on other sites More sharing options...
algrove Posted February 1, 2012 Share #18 Posted February 1, 2012 You might want to check out my review of the Walter RX Eyepiece. I used to use a magnifier to help focusing, but my astigmatism didn't help as it was just magnified (and a diopter wouldn't help)... The Eyepiece solved all of MY problems and I no longer use a magnifier. +1, best money you can spend on focusing aids. Link to post Share on other sites More sharing options...
gpwhite Posted February 2, 2012 Share #19 Posted February 2, 2012 I want to add comment about my excellent experience with the Walterrxeyepiece to those helpful posts from Algrove and Double Negative. Unlike Jaapv, I needed correction on top of the magnification necessary for me to focus my APO Telyt reliably. Then, I found that the 50 SX ASPH is outstanding at f/1.4, when I also used a 1.25X magnifier. With the Walterrxeyepiece, I no longer need the viewfinder magnifiers for any of my lenses, so my focusing (if not composition) is as good as Jaapv's, . This is the way to go.... without a doubt. [if you screw the diopters into the magnifiers, the system works but you lose contrast and probably need less correction... hence, more diopters] Link to post Share on other sites More sharing options...
jpattison Posted March 1, 2012 Share #20 Posted March 1, 2012 [if you screw the diopters into the magnifiers, the system works but you lose contrast and probably need less correction... hence, more diopters] Yes, I have just found this out! I have bought a Leica 1.25x magnifier to help with my 90 Elmarit and 135 f4 on the M9. It's not as sharp with the mag plus dioptre, as without the mag, but with a +1.5 dioptre lens on the camera directly. I have three +1.5 dioptre lenses (M4, M7 and M9) so if I can find the correct dioptre to fit permanently on the magnifier, It will be easy enough to use, as I'd have to take the dioptre off the camera anyway to fit the mag. David Stephens (my local dealer) has a full range of them, and advertises on his website full eyesight correction tests, so here we go again! John Link to post Share on other sites More sharing options...
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