Archived posting to the Leica Users Group, 1999/05/18

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Subject: Re: [Leica] Re: Beattie Intenscreen for Leica R4-7
From: Lucian Chis <chis@ece.orst.edu>
Date: Tue, 18 May 1999 22:10:37 -0700 (PDT)

I thought all of the Leica R screens are made by Minolta (Acute-Matte);
the same Minolta nobody makes after market screens for (Guess why!) and
who makes the OEM Hassy screens anymore!

What gives?

Lucian

On Tue, 18 May 1999, Jim Brick wrote:

> Doug is correct. The only meter cells in R cameras is behind the mirror.
> The screen makes no difference what so ever.
> 
> And, Brightscreens are way better than Beattie screens. Most optional Leica
> screens (supplied by Leica) are Brightscreens. The Fresnel Beattie
> produces, as Doug says, tunnel vision. I use DOF preview in my R cameras
> and it's great with a Brightscreen, useless with a Beattie.
> 
> IMHE (In My Humble Experience)
> 
> Jim
> 
> 
> At 10:21 PM 5/18/99 -0400, you wrote:
> >On Tue, 18 May 99, Andrew Nemeth wrote:
> >
> >>Just got one of these focus screens to augment the standard 
> >>screen which came with my R6.2.
> >
> ><SNIP>
> >
> >
> >>o  Because it transmits (slightly) more light, the instructions 
> >>   which come with the screen warn you that with an R4, you
> >>   will have to make EV allowances when using the camera exposure
> >>   meter on manual.  You won't have to do so however when you
> >>   use the camera on auto as this is metered through the mirror
> >>   in the camera body (and not the pentaprism).  This switcheroo
> >>   would be a real pain for R4 users!
> >>
> >
> >
> >uhh.. I don't think so.  As far as I know the R4's only meter cell is in
> >the bottom of the mirror box, and it receives it's light via the secondary
> >mirror behing the viewfinder mirror.  The R3, if it had interchangable
> >viewscreens, would have required adjustment for spot vs. center-weighted
> >metering.  If the R4 is anything like my R4sP (and the R4s I used to use)
> >the single meter cell is used for all modes.
> >
> >FWIW, I found the Brightscreen more useful.  With my 400 f/6.8 the Beattie
> >produced a "tunnel vision" effect in the viewfinder and the area outside
> >the central spot metering area was more difficult to focus.  This combined
> >with the tunnel effect persuaded me to return it after about 5 minutes'
> >use.  I like the Brightscreen (www.brightscreen.com) much better.
> >
> >Doug Herr
> >Sacramento
> >http://ourworld.compuserve.com/homepages/telyt
> > 
>