Re: Buying a lens

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#174

From: Li
Date: Fri, 24 Jul 1992 11:38

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Assuming the active dimension of the camera sensor array is R,
object diameter is r, and camera distance is a. Then we have,

      focal_length = a * R / (R + r).

Haihong Li

gst5@p.igp.ethz.ch

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Message-ID: <1992Jul24.113817.4091@bernina.ethz.ch>

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References: <1992Jul23.145842@sees.bangor.ac.uk>

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From: gst5@igpho (Li)
Newsgroups: sci.image.processing
Subject: Re: Buying a lens
Message-ID: <1992Jul24.113817.4091@bernina.ethz.ch>
Date: 24 Jul 92 11:38:17 GMT
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