Archived posting to the Leica Users Group, 1999/12/06

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Subject: [Leica] Re: MR Meters
From: John Collier <jbcollier@home.com>
Date: Mon, 06 Dec 1999 08:48:50 -0700

The MR and MR4 meters are functionally identical. The "on" switch is changed
on the MR4 so as not to interfere with the rewind crank on the M4 and above
cameras. The measuring area has the same coverage as the 90mm lens so you
can see the metered area though the rangefinder using the preview lever. It
is a CDS meter so it will have the usual memory problems of that type. I
find a handheld incident meter to be easier but have one for when I want to
travel as light as possible. If you do get an MR meter make sure the "tilt"
of the meter is correctly adjusted before you slide it on the camera. The
adjustment screws are located on the meter's "male" accessory shoe. Just
loosen the three main screws and then adjust the two recessed screws. You
can quite easily change a "Ex+" or "Mint-" camera into a "good user" just by
putting on a poorly aligned  meter once. It is fairly easy to discern half
stop increments but third (or tenths that Minolta IVF will do) I find
difficult.

John Collier

Mr, Kramer wrote: 
> I am wondering if I should consider the newer MR-4 meters, and was hoping
> some of you could share your experiences using them.  How big is the
> metering area?  How do they compare to the M6 meter in terms of accuracy?
> Are they significantly better than the earlier MC and MR meters?  Are there
> any particular drawbacks to using them?