Archived posting to the Leica Users Group, 1996/09/16

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To: leica-users@mejac.palo-alto.ca.us
Subject: parallax-correcting auxiliary finders
From: Jack Campin <jack@purr.demon.co.uk>
Date: Mon, 16 Sep 1996 13:39:16 +0000

Ther have been a couple of posts recommending these things.  I've got one
(a 90mm) and *loathe* it.  One more thing to forget; taking pictures with
a screwmount camera has way too many separate steps already.  What works
MUCH better is the dotted line on the VIDOM 50mm auxiliary finder showing
parallax error at close focus: you just interpolate mentally.  I've had far
fewer framing errors with this than with the 90mm.

Did anybody ever make a 90mm finder with a simple brightline mark like on
the 50mm?  Ideally, a magnifying one with adequate eye relief?

I'm amazed at just how bad most viewfinders are, given that Leitz's own
VIDOM essentially solved the problem of producing a bright, accurate
finder with a big sharp image and adequate eye relief for spectacle wearers
well before WW2.  Long after that patent ran out, manufacturers all over
the world - Leitz included - were still selling dark, squinty pieces of crap.
Are they so hard to make?  Two elements and a bit of silvering?

(One thing I have which has long been surplus to requirements: a V100H
35mm-135mm adjustable finder.  Is there any second-hand market for these?
I couldn't sell it locally).



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jack@purr.demon.co.uk  -  Jack Campin, 2 Haddington Place, Edinburgh EH7 4AE