Re: Leica M eyepiece diopters
- From: "Dave Saalsaa" <SaalsD@xxxxxxxxxxx>
- To: <leica@xxxxxxxxxxxxx>
- Date: Wed, 27 Oct 2004 11:08:07 -0500
Thanks, Peter, good to know that there are more odd people out there like
me. ;-) I really don't have a problem focusing the rangefinder patch now
but the viewfinder image is not perfectly in focus as it is in my diopter
corrected SLRs. My optician said the good news is my eyes have probably
settled in and will stay this prescription for a while now. So all those
corrective diopters I bought for my SLRs should be useful for a while. I
may just buy a +1.5 diopter for my M and see if it is better for me. Since
the M3s seem worse for me at this time, I will just correct them and leave
the M4-P and M5 as they are. Sherry put a new viewfinder assembly in my M5
a couple of years ago and it is very nice and bright.
Dave
----- Original Message -----
From: "Peter Klein" <pklein@xxxxxxxxxx>
To: <leica@xxxxxxxxxxxxx>
Sent: Wednesday, October 27, 2004 10:43 AM
Subject: Leica M eyepiece diopters
> Dave: Just so you know you're not alone. . .
>
> I have two .72x bodies, an M4-P and an M6TTL. I also have the 1.25x
> magnifier, which gives them M3-ish magnification. I'm nearsighted, and I
> wear either bifocal glasses or "monovision" contact lenses. The contacts
> give me distance focus in my right eye, and computer/reading focus in my
> left.
>
> Wearing either my glasses or contacts, I can see the viewfinder image
> quite comfortably with my "distance" prescription. But when I use the
> magnifier, I see a clearer image if I use my "near" left eye when wearing
> contacts, or the bottom (reading) portion of my bifocals.
>
> I first realized this while shooting a classical concert with a 90
> Summicron and the 1.25x magnifier. So I became a left-eyed shooter for the
> evening.
>
> So it appears that the higher magnification needs a different correction,
> at least for middle-aged eyes. Can one of our optical experts explain
> why?
>
> --Peter
>
> "Dave Saalsaa" <SaalsD@xxxxxxxxxxx> wrote:
>
> > 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?
>
>
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