Andrew Davidhazy

Professor of Technical Photography

Rochester Institute of Technology

Rochester, NY

http://people.rit.edu/andpph

My area of interest is the application of mathematical concepts in technical applications of photography. Be it quantification of phenomena or the design and use of photography to visualize physical and mathematical concepts.

I am entering two versions of this image. One is a 2D representation of a more than 360 degree panoramic view of the ground of the George Eastman House recorded on film (not computer adjusted) with a camera I designed and constructed to make conical projections or representations with a tilted panoramic camera. The other is the 3D version of the lampshade generated from a single 360 degree turn of the camera.

The segment of the circular film that was exposed is related to the tip angle of the camera and the side angle of the resulting cone. The concept and working principles are described in an article available on line at:

http://www.davidhazy.org/andpph/text-conical-panoramic.html

and in more mathematical detail at:

http://www.davidhazy.org/andpph/text-conical-strip.html

Andrew Davidhazy

Conical Panoramic view of the George Eatman House grounds

16 x 16 inches

photograph

circa 1990 but not positive

A camera that rotated a circular piece of film past a radial slot acting as a shutter exposed the film for more than two rotations of the camera and thus recorded two plus views of the House grounds each covering a sector of about 120 degrees or so designed so that the 360 degree view of the grounds would produce a sector that could be cut and formed into a conical lampshade. Sometimes this photo is confused with those that a fisheye lens might make but the fisheye lens could only make a single image of the House per frame. Here there are two.

Conical lampshade based on a 360 degree view of the George Eatman House grounds

About 14 inches tall by about 8 inches in diameter.

Photograph on Duratrans material

circa 1990 but not positive

A camera that rotated a circular piece of film past a radial slot acting as a shutter exposed the film for more than two rotations of the camera and thus recorded two plus views of the House groundseach covering a sector of about 120 degrees, One 360 degree view or one rotation of the camera was cut from the 2D record and assembled to produce this conical lampshade.

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Andrew Davidhazy

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