Re: [Leica] Prescription lens for eyepieces

["Julian Koplen" <jkoplen@mindspring.com>]

As far as I know, there are two possible solutions.  Just accept that your
eyeglass lens will be damaged from camera use, and be prepared to replace it
from time to time.  If you have premium lenses, consider a cheaper pair for
shooting sessions.  Or......remove your eyeglasses and rely on a correction
eyepiece  when shooting.  If your visual loss  is not extreme, the
correction diopter is an attractive choice, but with poorer vision, it can
be a nuisance to remove your glasses for focusing and framing, only to find
that you can't see anything else, such as camera settings, unless you put
your eyeglasses back on again.  I'm in that latter category and really
appreciate the R8, which allows me to shoot with my eyeglasses on, while
still seeing almost all of the viewfinder image and readout.

Hope this helps...........Julian

- ----- Original Message -----
From: Eric Etheridge <eric10@mindspring.com>
To: <leica-users@mejac.palo-alto.ca.us>
Sent: Thursday, January 13, 2000 11:06 PM
Subject: Re: [Leica] Prescription lens for eyepieces


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.

>