TELESCOPE BASICS
How to calculate Magnification
Calculating the magnification of a telescope is a very straightforward and easy
process that involves dividing the telescope’s focal length by the eyepieces’ focal
length.
The Focal length is the distance from the primary lens or the mirror to the point
where the incoming light converges. To determine magnification, simply divide the
telescope’s focal length by the eyepieces’ focal length. Here is the equation for the
calculation.
For instance, if your telescope has a focal length of 400mm and you’re using an
eyepiece with a focal length of 10mm, the magnification of this set up can be
calculated as shown:
40X
Please keep in mind that while magnification influences the apparent size of
observed objects, it is also important to consider factors like atmospheric
conditions and telescope’s optics for a comprehensive view.
13
ASTROLITE TELESCOPE
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