Olympusobjective Finder

What magnification do you need to see planets? To see a planet, such as mars, in good detail, you would need a magnification of 100X with an aperture of 5-8″.

What is telescope magnification? A telescope magnification is a measure of the total enlargement of an image that occurs through the lens of a telescope. For example, if a telescope increases the size of the moon by 10 times the normal eyesight size, then the total magnification is 10.

Olympus objectivesexplained

The focal length is a measure of the distance from the center of the lens to the foci of the lens. For this example, the focal length is found to be 500mm.

Olympus objectivesfor microscope

Enter the focal length and the eyepiece diameter (in the same units) into the calculator to determine the total magnification of the telescope.

What is a good magnification for a telescope? The best magnification for a telescope is as large as possible. The larger the magnification, the large and clearer the image. There is a point where two large magnifications would not be good for looking at something like the moon, but this would happen for personal telescopes.

This eyepiece is measured and found to have a diameter of 10mm. It’s important that the focal length and diameter are in the same units.