Rick Posted April 11, 2016 Share #101 Posted April 11, 2016 Advertisement (gone after registration) Jono, i just read the part about the LSD trip. I am prone to these as well. They are called ophthalmic migraines and you describe my symptoms pretty much. I don't get the HAs either. Mine stated about 1975 as well. About the time I discovered coffee. Apparently, we are wired alike. Rick Link to post Share on other sites More sharing options...
Advertisement Posted April 11, 2016 Posted April 11, 2016 Hi Rick, Take a look here Leica dioptre. I'm sure you'll find what you were looking for!
jonoslack Posted April 12, 2016 Share #102 Posted April 12, 2016 Jono, i just read the part about the LSD trip. I am prone to these as well. They are called ophthalmic migraines and you describe my symptoms pretty much. I don't get the HAs either. Mine stated about 1975 as well. About the time I discovered coffee. Apparently, we are wired alike. Rick It certainly sounds like it . . . although it's possible that mine started about when I stopped taking LSD! 1 Link to post Share on other sites More sharing options...
Herr Barnack Posted April 12, 2016 Share #103 Posted April 12, 2016 (edited) It certainly sounds like it . . . although it's possible that mine started about when I stopped taking LSD! Well there's your answer - resume taking LSD! Edited April 12, 2016 by Carlos Danger 1 Link to post Share on other sites More sharing options...
jonoslack Posted April 12, 2016 Share #104 Posted April 12, 2016 Well there's your answer - resume taking LSD! Certainly a thought Carlos - do you think that would reverse my cataracts as well . . . . and even make my lenses bendy again! Link to post Share on other sites More sharing options...
rjsphd Posted April 12, 2016 Share #105 Posted April 12, 2016 Novice question, perhaps, but of interest since I want to shoot without my glasses: Why go with the Leica diopters and not the Match Technical 1.25X with +3 to -3 diopter correction available and just dial in the setting that works the best? 1 Link to post Share on other sites More sharing options...
jdlaing Posted April 12, 2016 Share #106 Posted April 12, 2016 Certainly a thought Carlos - do you think that would reverse my cataracts as well . . . . and even make my lenses bendy again! Probably won't reverse the cataracts but you won't care. 1 Link to post Share on other sites More sharing options...
jonoslack Posted April 12, 2016 Share #107 Posted April 12, 2016 Advertisement (gone after registration) Novice question, perhaps, but of interest since I want to shoot without my glasses: Why go with the Leica diopters and not the Match Technical 1.25X with +3 to -3 diopter correction available and just dial in the setting that works the best? Hi There I don't use diopters, but I seem to remember that there is some light loss with the match technical? . . . have you tried a contact lens in your rangefinder eye? 1 Link to post Share on other sites More sharing options...
ECohen Posted April 12, 2016 Share #108 Posted April 12, 2016 Novice question, perhaps, but of interest since I want to shoot without my glasses: Why go with the Leica diopters and not the Match Technical 1.25X with +3 to -3 diopter correction available and just dial in the setting that works the best? You have to be sure you have the correct diopter........ I shoot without my glasses I use a +4 diopter ...it's clear bright and easy .....very easy to focus....and you see all the frame lines I keep my progressive lenses on my head, either looking over the glasses or lifting them to use the camera ...this allow me to easily see the LCD if needed....and I can always find my glasses. If my prescription were such that I couldn't correct it with a simple diopter. I would use a Walter Leica Eyepiece http://walterleica.com/eyepiece.html Hope this helps 1 Link to post Share on other sites More sharing options...
Rick Posted April 12, 2016 Share #109 Posted April 12, 2016 Novice question, perhaps, but of interest since I want to shoot without my glasses: Why go with the Leica diopters and not the Match Technical 1.25X with +3 to -3 diopter correction available and just dial in the setting that works the best? Because, these eyepieces are little telescopes that provide focusing of the telescope by moving the two lenses relative to each other. The focusing simulates what the single lens diopter provides. The image is somewhat degraded by having one more lenses in the optical path beyond the simple diopter. And, the image is magnified which may be good for longer lenses but, restricts the FOV through the RF with wider ones. This might be a good choice for some, especially for long lenses. Personally, I have one and did not like the magnifies view. It seemed to degrade the optics of the VF. Rick 2 Link to post Share on other sites More sharing options...
rjsphd Posted April 12, 2016 Share #110 Posted April 12, 2016 Thanks Rick for your explanations. With a script that has adjustments for sphere, cycle, axis and add, I just called my Doc and asked what diopter I should use. She said -0.50. So if I understand Rick's + 0.50 advice, I don't add a diopter after all! But I guess it's only a matter of time... Link to post Share on other sites More sharing options...
Rick Posted April 12, 2016 Share #111 Posted April 12, 2016 I understand from your PM that your Rx is -0.25-0.50x120. Your spherical equivalent would be -0.50. (-0.50) + (+0.5) = 0 But, this may be off by +0.50. Empirically, your correct diopter would be 0.00 to +0.50. give this a try and determine which you like the best. Hope this helps, Rick 1 Link to post Share on other sites More sharing options...
rjsphd Posted April 12, 2016 Share #112 Posted April 12, 2016 Thanks, I will give it a try. Link to post Share on other sites More sharing options...
sharookh Posted April 13, 2016 Share #113 Posted April 13, 2016 I just purchased a 1.4 magnifier. After screwing it on I realised that the viewfinder reveals an out of focus image. When I remove the magnifier, it's fine. I'm now told that the magnifier has an inherent -0.5! And to obtain a focus image in the VF I would have to buy a +0.5 diopter to solve the blurry issue, owing to my long distance number. (My short distance number is +2.5 and long distance is approximately +0.75.) Need advice if I really need to buy the diopter I was advised. Many thanks! Link to post Share on other sites More sharing options...
Guest NEIL-D-WILLIAMS Posted April 25, 2016 Share #114 Posted April 25, 2016 I Hope this helps, Rick Rick Hello mate. I am using a +1.5 Diopter on my Leica M6 0.85. I have just bought a Hasselblad 503CW and a 45 deg prism view finder. My question is should I order a +1.5 for the Hasselblad or should I include take away the 0.5 Rangefinder preinstalled correction? Thanks in advance Neil Link to post Share on other sites More sharing options...
jaapv Posted April 25, 2016 Share #115 Posted April 25, 2016 And the solution is so simple <Leica provideth>; everybody is welcome to drop by and check his eye. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! 1 Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/258125-leica-dioptre/?do=findComment&comment=3033292'>More sharing options...
Rick Posted April 26, 2016 Share #116 Posted April 26, 2016 Rick Hello mate. I am using a +1.5 Diopter on my Leica M6 0.85. I have just bought a Hasselblad 503CW and a 45 deg prism view finder. My question is should I order a +1.5 for the Hasselblad or should I include take away the 0.5 Rangefinder preinstalled correction? Thanks in advance Neil Hi Neil. I don't know. My guess is that you would need a +1.00. Maybe you could hold your +1.50 clumsily infront of the finder on the 503CW and get an idea if it is too strong? By the way, I always wanted a Hasselblad 500c. I know there is one left behind on the moon if, I could just somehow find a way to get it! Rick Link to post Share on other sites More sharing options...
Jeff S Posted April 26, 2016 Share #117 Posted April 26, 2016 A modified 500 EL came back from the moon (and was auctioned for almost $1million)....but a reported 12 other cameras are still on the surface. Jeff 1 Link to post Share on other sites More sharing options...
mansplainer Posted March 11, 2017 Share #118 Posted March 11, 2017 Actually, your distance prescription plus diopter must equal +0.50 D. For example, your distance Rx is 0.00, then the diopter you will need is +0.50D. Rick, may I paraphrase? "For those with perfect vision, you MUST use a diopter in order to properly use Leica cameras the way they were designed to be used." This is how I am interpreting your statement, apologies if I am missing something. So far, I am unable to find a single Leica dealer who recommends diopters for those with perfect vision. Any clarification would be great, thanks! Link to post Share on other sites More sharing options...
jaapv Posted March 12, 2017 Share #119 Posted March 12, 2017 You are responding to a post that is a year old.... Link to post Share on other sites More sharing options...
jaeger Posted December 13, 2018 Share #120 Posted December 13, 2018 (edited) my new prescription is +1.75 but I cannot find +2.5. Does Leica not making +2.5 diopter? My second question is that I also own a magnifier, do I mount the diopter before or after the magnifier? I prefer to mount before magnifier so that I can remove the magnifier when I use wide angle lenses. Edited December 13, 2018 by jaeger Link to post Share on other sites More sharing options...
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