Re: rise or fall

[Willem-Jan Markerink <w.j.markerink@xxxxx>]

On 22 Feb 00 at 21:25, Ellis Vener wrote:

> Somebody else wrote that all rise/ fall does is crop the image
> differently. That is true only of rear movements, move the lens (an
> excellent and well proven substitute for the human eye by the way) and
> you change not only the composition but also the point of view.

It's not true in both cases....:-))
You not just crop an existent image differently, you increase the 
field of view in one direction, thereby inducing all the problems 
related to (more) extreme wide angles (squares become rectangles, 
circles turn in ovals etc).
A 24mm at full 11mm shift equals a 14mm in one direction.

Most people ignore this effect when talking about shift lenses....it 
can be either appealing or appalling....8-))
(you get the pull-effect of an extreme wide angle, yet the mild 
magnification of a 24mm (mmm....actually even less in the 
corners....;-)) 


--                 
Bye,

Willem-Jan Markerink


      The desire to understand 
is sometimes far less intelligent than
     the inability to understand


<w.j.markerink@xxxxx>
[note: 'a-one' & 'en-el'!]