Archived posting to the Leica Users Group, 1997/01/18

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Subject: Re: Leica MR Meter - How do YOU use?
From: "C.M. Fortunko" <fortunko@boulder.nist.gov>
Date: Sat, 18 Jan 1997 10:02:40 -0700

LUGs,

The light-meter accuracy question seems to come up from time to time.

My way of checking the meter accuracy is to point the camera or meter at a
lightbox. My M6 is then used as the reference. I am very comfortable with
this method.

I developed the method, because my experience indicated that my various
meters and cameras were within +/- 1 stop. By using the light box, I
discovered that they were off by only +/- much less than 1/2 stop.

My conclusion was that metering off of scenery is not a good test, because
different meters have different fields of view and construction. There are
probably other factors of which I am not aware.

Best of Light,

Chris


At 11:01 AM 1/18/97 -0500, you wrote:
>I find the best way to check the accuracy of a meter is to use it to shoot
>some Kodachrome 25 and then view the results. If they are correct, then so
>is the meter. (To my way of thinking)
>
>kw
>
>>Dear Leicafolk,
>>
>>I use a M4-2 to which I have added a black MR meter - the one with the
>>90degree angle of view, light reading lever on top, battery check on front.
>>I use this kit mostly for available light "street" photography, with
>>35/50/90mm lenses.
>>
>>The meter had no manual with it so I would be interested in getting info on
>>what manuals exist, or just your techniques for using the beast.
>>
>>Other equipment I use has eitier through-the-lens metering or is a digital
>>Pentax spotmeter.
>>
>>The leica MR seems to read between 1/3 to 1 stop less than both my Nikon S
>>photomic head and the Pentax. The battery check puts the pin over the white
>>dot on the scale, so I assume that this means the battery is good.
>>
>>I guess that one can expect some difference, given that its not TTL, but I
>>wonder what techniques you use? Also, if, how, and how often, you find you
>>need to calibrate the MR.
>>
>>Any advice appreciated!
>>
>>brgds
>>
>>Mel
>
>----
>Ken Wilcox                                Carolyn's Personal Touch Portraits
>LHSA, MEA, LAW                         preferred---> <wilcox@umcc.umich.edu>
>                                              <kwilcox@genesee.freenet.org> 
>
>
>
>