Re: fisheye or flat field?

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

On 29 Mar 00 at 19:36, Alan Zinn wrote:

> 
> Colleagues,
> 
> I don't know anything about ultra-wide lenses and have questions. For a
> rotating panorama camera does it matter if a lens is flat field or fisheye
> since a narrow vertical aperture is used?  The choice is between a 15mm
> Sigma fisheye and a sigma 14mm flat field.  Are their optical qualities of
> fisheye lenses that make them unsuitable for a panning camera? btw anyone
> know a url with data on these lenses?

>From previous discussions I learned that the distortion of a fisheye 
is too high, even with such a small slit....the only way it can work 
is with a single-pixle-registrating digital panorama camera....I 
believe both Dan Slater and Andy Davidhazy have done this, both with 
a circular fisheye of more than 180 degree view (on which Andy based 
a theory of seeing beyond infinity....quite mindboggling)....both 
links are on my homepage (do a text search in your browser):

http://www.a1.nl/phomepag/markerink/mainpage.htm















 

--                 
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'!]