Hello David:
The "normal" focal length for any format can be found
by using pythagorean theorem. The aquare root of the
sides aquared and added thus:
11 X 11 = 121
+14 X 14 = 196
----------------------
317
and the square root of 317 is 17.804493. So the
"normal" lens for your 11X14 is 17.8 inch. Multiply by
25.4 to get the metric equivalent of 452mm
approximately.
Barry Young
--- David Ivison <[EMAIL PROTECTED]> wrote:
> Hi, I might make an 11x14 and need to find out the
> standard lens focal length and what lenses actually
> cover 11x14. Thanks.
>
>
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