Telescope Calculator
This calculator
requires the use of Javascript
enabled and capable browsers. This calculator is designed to give
the operating characteristics for a given telescope, based on the
data entered for the scope's operating specifications. Enter the
values for the telescope's aperture in either millimeters or inches;
also enter the lens' focal ratio or focal length. Enter the eyepiece
size in millimeters, the apparent field of vision in degrees and the
Barlow Lens factor. Click on Calculate for the scope's vital
information.
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