Re: [fisheye or flat field?]

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

On 29 Mar 00 at 20:28, Alan Zinn wrote:

> At 05:23 PM 3/29/2000 -0800, you wrote:
> >Alan Zinn <azinn@xxxxxxxxxx> 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?
> >
> >
> >Definately go flat field.  The fisheye distortion will compress the image
> >towards the edges.  Also the film will not be in synchronization with the
> >rotation as it moves across the slit near the edges, causing bluring.
> >
> >--Alan
> 
> Alan,
> Quick answer from a quick guy!  Kind of suspected there would be a problem.
> Now I'm wondering what someone would want all that forground and sky in a
> 15mm pano for:->

Think 'indoor'....vertical angle of view can hardly be large enough 
there....;-)) 
(okay, those fiddling with 6mm fisheyes are stretching it....:-))
 

--                 
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'!]