Re: Leica M eyepiece diopters

Sometimes they come on a certain auction site for less.  If you knew your
true distant vision correction, you could just apply +0.5 to that and be
pretty certain of having it right (providing all my calculations are
correct.)  I seem to remember there was/is an optometrist in Roanoke, VA,
who used to frequent the LUG, and he often offered help with this issue.  If
memory serves, he is Richard Clompus.  I think it would help if you knew
your actual distant vision correction in ordinary eyeglasses.

If it's any consolation, a few years ago I paid upwards of $250 to have mine
custom ground with around a plus 4.5 diopter and a hefty bit of astigmatism
correction as well.  Then I found that when I use that without my
eyeglasses, I can see the viewfinder image but little else  :))  :)).   I
would have to guess where my M6 shutter speed and f stop were (or
laboriously count the clicks on the dials).  Now I'm using my eyeglasses
without the viewfinder add-on and just living with the need to turn my eye
this way and that to see the whole viewfinder image.

Good luck..........Julian


----- Original Message ----- 
From: "Dave Saalsaa" <SaalsD@xxxxxxxxxxx>
To: <leica@xxxxxxxxxxxxx>
Sent: Wednesday, October 27, 2004 10:21 AM
Subject: Re: Leica M eyepiece diopters


Thanks, Julian.  I will call Dave Elwell.  I wish I could try some different
value diopters before committing to the $80 each.  I don't have any local
shop that carries Leica products.

 Dave
----- Original Message ----- 
From: "Julian Koplen" <jkoplen@xxxxxxxxxxxxxx>
To: <leica@xxxxxxxxxxxxx>
Sent: Wednesday, October 27, 2004 7:21 AM
Subject: Re: Leica M eyepiece diopters


> Everything I have read refers to the same diopter value in the various M
> cameras, up to and including the M6.  And I assume it has not changed for
> the M7 and MP.  I can't explain the differences you perceive in your M's,
> but I'll wager it's not related to eyepiece diopter differences.  Dave
> Elwell in Leica Parts Dept. can confirm (or refute) this, if you give him
> a
> call.
>
> Julian
> ----- Original Message ----- 
> From: "Dave Saalsaa" <SaalsD@xxxxxxxxxxx>
> To: <leica@xxxxxxxxxxxxx>
> Sent: Tuesday, October 26, 2004 10:21 PM
> Subject: Re: Leica M eyepiece diopters
>
>
> Thanks Julian.  This is the exact diopter number that has worked well on
> my
> Minolta SLRs and my Bronica ETRS.  So it would seem that it should work on
> the Leica Ms too.  My original question was "is the old Leica M3 the same
> diopter built in as the the M4-P and M5.  They seem a bit different to my
> eye but not by much.
>
> Dave
> ----- Original Message ----- 
> From: "Julian Koplen" <jkoplen@xxxxxxxxxxxxxx>
> To: <leica@xxxxxxxxxxxxx>
> Sent: Tuesday, October 26, 2004 7:48 PM
> Subject: Re: Leica M eyepiece diopters
>
>
>> My understanding is that the M viewfinder has a minus 0.5 diopter built
>> in.
>> So, if your aging eyes require a plus 1.0 for clear distant vision, then
>> you
>> would want to put a plus 1.5 into your eyepiece.  They do screw into the
>> existing eyepiece frame, so no "surgery" is necessary.
>>
>> This has been a subject of some confusion, so you may well get some
>> opinions
>> that differ from my own.
>>
>> Julian
>> ----- Original Message ----- 
>> From: "Dave Saalsaa" <SaalsD@xxxxxxxxxxx>
>> To: <leica@xxxxxxxxxxxxx>
>> Sent: Tuesday, October 26, 2004 6:16 PM
>> Subject: Leica M eyepiece diopters
>>
>>
>> As my eyes get older along with the rest of me, I have had to add
>> corrective
>> diopter lenses to the eyepieces of my other SLR cameras.  My Leica Ms
>> seem
>> to still work fairly well for me though.  One thing I have noticed is
>> that
>> on my two M3's the view is not quite as sharp as on my M4-P and M5.  All
>> cameras have been CLA'd fairly recently so they are quite clean and
>> bright.
>> But I am wondering if the diopter value on the M3's may be a bit
>> different
>> than on the newer version Ms.  Also does the corrective diopter eyepiece
>> from Leica screw onto the old eyepiece or does it replace it completely.
>> In
>> either case I need to know what the factor spec is on the aforementioned
>> Ms
>> I have.  Anyone have the answer here?
>>
>> Mucho takk,
>> Dave
>>
>>
>>
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