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Re: [OM] Off Topic: Viewfinder spec definitions

Subject: Re: [OM] Off Topic: Viewfinder spec definitions
From: Matthias Wilke <Matthias.K.Wilke@xxxxxxxxxxxxxxxxxx>
Date: Tue, 26 Jan 1999 00:02:58 +0200
Matthias (myself) wrote:

>>On a related note, I read somewhere that when camera manufacturers
>>specify the
>>coverage of their finders (93%, 97%, etc...) they are comparing linear
>>measurements. So a 97 0.000000inder shows 24mm*.97=23.28mm X 
>>36mm*.97=34.92mm. In
>>reality this is only 940f the area of the image - 24*36=864 sq. mm vs.
>>23.28*34.92=812.9376; 812.9376/864=94.09%
>>
>>So a 93 0.000000inder (like on the OM2000) only shows 86.50f the image.
>>
>>Can anyone verify this?


>I think this is right, because sometimes (with medium format cameras for
>example) the magnification is specified with two values for vertical and
>horizontal magnification.

Sorry, I meant horizontal and vertical percentage of the picture area.

Matthias



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