Archived posting to the Leica Users Group, 1998/03/05

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Subject: Re: [Leica] PLS HELP - LEICA MACRo ADAPTER R HELP
From: Jim Brick <jim@brick.org>
Date: Thu, 05 Mar 1998 23:07:13 -0800
 
At 01:00 PM 3/6/98 +0100, you wrote:
>Hi,
>
>has anyone experience using the Macro-Adapter-R in combination with one
>of the following lenses:
_____________________________________________________________________

             lens scale dist to front   reproduction    object field
                        of lens in cm       ratio          in mm
R 1:2/50mm    inf - 0.5 | 9.9 11.6  | 1:1.42 1:1.75 | 34x51 42x63
R 1:2/90mm    inf - 0.7 | 23  32    | 1:2    1:3    | 48x72 72x108
R 1:2,8/135mm inf - 1.5 | 55  75    | 1:3    1:4.5  | 72x108 108x162
R 1:4/180mm    ?

Jim
_____________________________________________________________________


>
>I'm especially interested in the min. distance and the proportion of
>object and its representation (sorry I don't know the correct technical
>name for it) and the smallest object-field.
>
>Thank you for your answers!
>Michelle
>Vienna, Austria
>