StarField Bahtinov Mask - 160 mm - FM-160 vendor-starfield-optics "You may know there'''s a

"You may know there'''s a long history of naming telescope eyepieces after their designers: Kellner

iOptron's iCAM462C color camera has a very high sensitivity

Center-balanced Equatorial Mount (CEM)

the Celestron NexStar Evolution includes its own built-in lithium-ion battery

StarField Bahtinov Mask - 160 mm - FM-160 vendor-starfield-optics "You may know there'''s aThis StarField Bahtinov Mask is sized for 140 mm 150 mm telescopes and fits dew shields with an outside diameter of 175 mm to 212 mm. While basic, often home made focus masks have been used for quite some time, the Bahtinov mask, with it's distinctive pattern, is unique. Invented by Russian amateur astronomer Pavel Bahtinov, this mask has quickly become the astro imager's choice for fine focusing a telescope. To use, place the Bahtinov mask in front