[LargeFormat] Contact frame

[Ken Hough]

Dear Uncle Dick
3/8 in plate glass is fine. The secret is the backing. Remember the old 
contact frames that squeesed everything together? The felt had no "give".
Neither should your backing. I contact print 14x17 with a 16x20 sheet of 
glass and a piece of indoor / outdoor industrial carpet as a backing.
There is no room for air pockets to cause the blurrieness of the image.
Ken

From:           	"rstein" <rstein@bigpond.net.au>
To:             	<largeformat@f32.net>
Subject:        	Re: [LargeFormat] Contact frame
Send reply to:  	largeformat@f32.net
Date sent:      	Sat, 15 Jun 2002 12:17:05 +0800

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Dear Lee,

     Yes, it really is my name, and yes, I really am an uncle - to an
increasingly nervous set of nephews and nieces. I am the sort of uncle who
fills their children up with red food colouring, starts a game of cowboys
and indians with real bows and arrows and then leaves. I am good for
Christmas presents but the ones I give generally make noise or need
hard-to-obtain batteries.

    I have tried thick glass but I don't seem to be able the get the sort of
close contact between negative and paper that the 4 x 5 frame provides -
there seem to be areas  'out of focus' as it were. I think I need more back
pressure.

     Uncle Dick






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        ******Ken Hough Photographic Repair******
         Specializing in Deardorff Refinishing
          Lens Recementing and Shutter repair
          Contributor to McKeowns Price Guide
                   Deardorff Section
           Custom machined Photographic items
           Text Contents Copyright 1999 KHPR
          http://deardorffcameras.0catch.com/
                   Est. 1980