Daily Archives: 11/06/2021

1 post

Diagram of a telescope and eye piece focal plane.

Magnification in astrophotography and EAA

About a year ago, I wondered what magnification I was getting with my astrophotography set up.  The best answer came from an article on Cloudy Nights.  That article said that there really isn’t any answer to the question of magnification in photographs, but you might approximate the magnification by considering your eye as the eyepiece at the main focal plane of your telescope.  The human eye has a focal length of 22 mm, so the magnification your eye would see can be calculated by dividing the focal length of the telescope in millimeters by 22 millimeters.  Using that algorithm gave […]