>From: Winsor Crosby <wincros@xxxxxxxxxxxxx>
>
>On Friday, January 31, 2003, at 10:26 AM, Jan Steinman wrote:
>
>> Keep in mind that the relationship between focal length and angle of
>> view is non-linear. Small changes at the wide end can be dramatic.
>
>Really?
>...
>Looks sort of linear to me.
It's actually hyperbolic or asymptotic. Over small parts of the curve that are
far from the focus, it might appear to be linear.
Go look at the graph I posted and you'll see what I mean!
--
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