Chuck wrote
> Maybe 35mm equivalents will make it easier to visualize.
>
> A 110mm lens on 6x17 gives a 75 degree horizontal angle of view or
> approximately the same as a 24mm lens on 35mm.
>
> A 90mm lens on 6x17 give an 86 degree horizontal angle of view or
> approximately the same as a 19mm lens.
>
> Of course, the angular height of the 6x17 would not be like the 35mm
> equivalents. It would be about like cropping the top half off a 35mm
> image.
>
> ps: The handiest calculator I've found for doing these kinds of
> calculations for all kinds of different formats is here:
> <http://www.mhohner.de/formulas.php> Scroll to near the bottom of the
> page to skip all the math and get to the calculator.
Thanks very much for this link and info. I have bookmarked his site.
Actually, "my" Rodenstock Granadon is 115mm, and using his calculator the
FOV is 72.29° which is close to a 35mm lens of 24.5mm 72.61° - putting
a finer point on it.
24mm on a 35mm camera is pretty wide by my usage, so at the very least
the 155mm Granadon will be an excellent starting point for me with 6 x 17
Thanks for putting my concerns at rest!
Brian Swale.
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