>
>Date: Sun, 10 Dec 2000 10:32:01 -0600
>From: Chip Stratton <cstrat@xxxxxxxxxx>
>Subject: RE: [OM] RE: 35 - 50mm human eye
>
>This question can never really be 'solved', because the acceptance angle of
>a human eye is much greater than a 50mm or even a 35mm lens - probably
>closer to a 24mm or 21mm lens. The limits of 'resolution' and the brain's
>reaction to it make the most useful angle of view smaller, and I'm sure
>it can be argued endlessly what that angle is.
>
The angle of acceptance for my eyes is about 170deg. You can test this
yourself: look straight forward and hold up your hands on each side, move
them back while still looking forward. There is a point where you can't see
them anymore. For me it'a about 170deg, almost 180. I took vision training 10
years ago to expand my visual field and improve my stereo vision. It is very
useful to be able to drive and see both mirrors while looking straight ahead.
I can usually identify the color and size of a vehicle in a mirror, but not
much else.
However, my resolution diminishes considereably from center to edge. So maybe
a single coated 18mm is close? <g>
--
Be Seeing You.
Dirk Wright
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