On Sat, 01 Mar 2003 19:50:17 GMT, "Yi-Zen Chu; Yiren
Qu" <yizen@attbi.com> wrote:
>Perhaps I'm not understanding the difference between
real distortion and
>the effects of perspective due to being close to a
subject. I'd like to
>take the following shot as example:
>
>http://www.photo.net/photo/pcd1765/easy-rider-10
>
>The man on the bike has relatively proportional
features, yes? But if we
>look to the side we see a man and woman. These people
appear stretched
>out and "sheared" slightly - am I
understanding correctly that this is
>distortion?
>
>So I guess the lesson is not to put your subject way off
center? The
>thing is I see my Sigma giving me images that look like
the man and
>woman, just slightly milder. That makes my subject look
rather strange
>sometimes.
>
>Yi-Zen
"MC" has it right (and also see "z's"
post, below). You
may prefer a wide-angle lens with considerable barrel
"distortion" to minimize extreme WA effects with
rounded
subjects (though this will not "correct" too-close
a viewpoint...). For more on why even a moderate WA lens
with no "distortion" can make people look bad, and
a
VERY much wider fisheye can show people near the edges
looking "OK", see:
www.David-Ruether-Photography.com/articles.html#perspective and
www.David-Ruether-Photography.com/perspective-correction.htm.
BTW, the WA "distortion" appearance is due to the
perspective difference between the perspective type of
most lenses and the perspective type of our vision,
which is closer to "fisheye"...