Seitz Roundshot D2x Instruction Manual page 70

In rotational 360° panoramic photography the image format is defined by three factors:
the image height (sensor resolution in pixels vertically)
the image length (degrees of rotation horizontally)
the effective focal length of the lens used
The image height
resolution does not change regardless the lens used.
The image length can be defined in the software in degrees, from 1° to 999°. With a
given image length and a given effective focal length, the software calculates the
number of steps required to complete the image:
Image length =
where:
For example:
The image length for a 360° panorama taken with the Roundshot D2x:
35mm lens =>
80mm lens =>
Instruction Manual Roundshot D2x
f* 2 *
360 * pitch
f = effective focal length
= 3.14159265
deg = degrees of rotation (image length)
pitch = size of one pixel;
for D2x = 14 µ or 0.014mm
35 x 2 x 3.14159265 x 360 / 360 / 0.014 =
80 x 2 x 3.14159265 x 360 / 360 / 0.014 =
- version 3.2 February 2010 -
deg
f = 80
© by Seitz Phototechnik AG / Switzerland www.roundshot.ch page 69