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steel Declination axle Φ55mm
to help block out unwanted stray light
When you purchase the ZWO ASI585 Color Planetary Camera you will receive the camera body
you will find this is true in both form and its function
Diameter: 100 mm (3
StarField Bahtinov Mask - 80 mm - FM-80 Celestron Equatorial Telescopes steel Declination axle Φ55mmThis StarField Bahtinov Mask is sized for 80 mm telescopes and fits dew shields with an outside diameter of 87 mm to 105 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 of the
US$ 38.00
US$ 38.00
US$ 184.50
