Re: Cylindrical Distortion

[Randy Vaughn-Dotta <randyd@xxxxxxxxxxxxxxxxxxxx>]

Alan,

Please do post your construction techniques.  And
thanks for doing so.

Randy



Alan Zinn wrote:
> 
> At 12:20 PM 11/26/1998 -0700, you wrote:
> >11-26-97
> >
> >List:
> >
> >A recent wide-ranging thread on "distortion" stopped short of the area I
> >have been exploring lately. The term "cylindrical distortion" is helpful,
> >in my opinion, in discussing the geometry involved. A scholarly discussion
> >of the subject my be found in the March-April, 1983, issue of "American
> >Scientist" magazine, pp. 132-140, the article "Panoramic Photographs," by
> >Harold E. Malde, a mathematician, geologist, and very fine photographer.
> >
> >As long as panoramic photographs (no matter what techniques are used to
> >produce them) are displayed flat (i.e., in two dimensions), their visual
> >effect is restricted. If the same pictures are displayed as an arc (i.e.,
> >cylindrically, in three dimensions) an altogether different effect results.
> >
> >An example may be seen at:
> >
> >http://www.acofi.edu/~comm/webquest/spring98/qboles.htm
> >
> >My best to all on the list,
> >
> >Jan Boles   <jambo@xxxxxxxxxx>
> >
> >\
> Jan,
> 
> That's quite a rig!  Do you have more of your pics on the web?
> I made a fixture for easily bending white or black plastic into semi-circle
> presentation mounts.  They are an attractive way to present panoramas minus
> the cylindrical "distortion". I will post the construction techniques if
> anyone is interested.
> 
> regards,
> AZ
> 
> >
> Lookaround Cameras are more fun.
> 
> See cameras and pictures at:
> http://www.keva.com/lookaround
> http://www.geocities.com/SoHo/Gallery/8874
> 
> Also at Cafe Society Gallery:
> http://www.curdev.hull.ac.uk/root/cafe/cafegal.htm