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Re: [fisheye or flat field?]


  • From: Glenn Barry <glenn@xxxxxxxxxxx>
  • Subject: Re: [fisheye or flat field?]
  • Date: Thu, 30 Mar 2000 10:53:54 +1000

For reference specs on lenses try
photodo.com

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:->
>
> Thanks
>
> AZ
>
> >
>
> Lookaround Panoramic Cameras and Gallery:
> http://www.keva.com/lookaround
>
> New images for feb/march at:
> http://www.geocities.com/SoHo/Gallery/8874/
>
> Panorama workshop 4/28-4/30
> http://www.area360.com/workshop.html

--
Glenn Barry Photography
Studio 1, Level 1
2-14 Mountain St
Ultimo N.S.W. 2007
Australia
Ph (612) 9211 3080
Mobile 0415 279 366
E-Mail: mailto:glenn@xxxxxxxxxxx
Web: http://www.acay.com.au/~glenn