60mm Bahtinov Mask

Bahtinov Mask for 60mm Optics

Overview:

The Bahtinov mask is used to focus small telescopes accurately. Although masks have long been used as focusing aids, the distinctive pattern was invented by Russian amateur astrophotographer Pavel Bahtinov.

Simply place the mask in front of the main optic of your telescope and take a picture. Look at the diffraction spike pattern and continue until the spikes are even. Using a Bahtinov mask is the easiest way to get into focus.

Notes:

This 60mm mask is great for 67mm – 87mm class telescopes