Eyepiece Calculator

Fill in the focal length of your telescope, and either select an eyepiece or, type in an eyepiece focal length and apparent field of view. If you type in your own eyepiece information, you will need to click the calculate button to perform the calculation.
Telescope Focal Length mm
Eyepiece Focal Length mm
Apparent Field Of View degrees
Calculated Magnification
Calculated True Field Of Viewdegrees

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