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Posted by Rick Oleson on September 19, 2001 at 14:24:21:
In Reply to: Nikkor Lenses & Keystone Effect posted by Patrick Kenney on September 19, 2001 at 10:47:43:
Hi Patrick:
"Keystone effect" has nothing whatever to do with the design of the lens: it is purely a function of your holding the camera so that the film plane is parallel to the subject (in the case of buildings, this means holding the camera level). The job of the lens then is to provide enough coverage to reach to the top of the building without making you tilt the camera. Shift lenses do this by moving the lens elements laterally, super-wideangles do it by just covering a whole bunch and letting you crop off the bottom. The attached picture was taken with a 20mm lens and then cropped at the bottom (if the link doesn't take, you can see it at http://rick_oleson.tripod.com/color/page10.html).
So, the quick answer is:
1- Any wide angle that's wide enough to cover the subject without
tilting the camera; or
2- A PC-Shift wide angle lens.
A fisheye won't 'keystone', but it will give you curves that I'm assuming you don't want.
rick :)=
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