"Severi
Salminen" <severi.salminen@NOT_THISsiba.fi>
wrote
in message news:uQbwb.393$Sj.198@read3.inet.fi...
> Do
you even understand what perspective means? I think you don't. Or
>
then you are trolling. Remember these easy rules:
>
> 1.
Perspective changes if, and only if camera position changes in
>
relation to subject. Never ever else.
>
> 2.
Field of view (angle, cropping...) changes when you change the focal
>
length or the negative/sensor size.
>
>
This is basic, very basic photography. Take a look at Ansel Adams:"The
>
Camera" page 103-104. There is a set of 4 pictures which illustrates
>
this concept.
>
> I
allways wonder why this is so hard issue? Especially with the "1.6x
>
magnification factor" cameras...
>
>
Severi S.
Yes -
but, I, uh, take "friendly exception" to number one above - try
switching
to a fisheye-lens or a swing-lens and the perspectives shift
from
(likely) rectangular to spherical or cylindrical types, which can
look
quite different if far off axis/image-center...;-)
--
David Ruether
d_ruether@hotmail.com
http://www.David-Ruether-Photography.com