Re: [Leica] Prescription lens for eyepieces

["Eric Etheridge" <eric10@mindspring.com>]

I've been scratching the anti-glare coating on my new eyeglasses, mostly the
right lens, I suspect by hitting it against eyepiece on my M6 when I shoot.

Is (the right) diopter the solution to this?



- ----- Original Message -----
From: Julian Koplen <jkoplen@mindspring.com>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Thursday, January 13, 2000 6:51 PM
Subject: Re: [Leica] Prescription lens for eyepieces


> Thank you, Richard.  I am originally from Danville and just moved to
Myrtle
> Beach a few months ago, so I am temporarily without "connections".
>
> Is it relevant that Leica puts a -0.5 diopter in the M eyepiece and a -1.0
> diopter in the R?  Or is that just another way of saying that the virtual
> distance is 1-2 meters?  What is so confusing is that some people talk
about
> the virtual or projected distance and others talk in terms of the diopter
> that Leica has already put into the M and R eyepieces.
>
> If I cannot find a cooperative optometrist locally, would it make sense to
> consider my own distance +4 correction as a baseline and then, using the
> above Leica eyepiece information,  add an additional +0.5 for the M and an
> additional + 1.0 for the R, giving me an add-on eyepiece of 4.5 for the M
> and 5.0 for the R? That way, when I factor in the factory eyepieces, I'm
> back at +4 for each?
>
> Whew!
>
> Thanks.........Julian
>
> I will be glad to go off-list from this, but I do think it may be of value
> to some other users.  The factory does less than an efficient job in
> clarifying this for its customer base.  It would be nice if they simply
> said, use your distance prescription, or use a 1-meter prescription.....or
> whatever.

>