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All-Star Telescope is your source for all things astro from telescopes to astrophotography cameras. Have a question? We'd love to help. Email: info@all-startelescope.com Call Us: (587) 336-6621 Toll Free: 1 (866) 310-8844
Have a question? We'd love to help. Email: info@all-startelescope.com Call Us: (587) 336-6621 Toll Free: 1 (866) 310-8844

Starfield 200mm Focus Mask

SKU FM-200
Original price $50.00 - Original price $50.00
Original price
$50.00
$50.00 - $50.00
Current price $50.00

Shipping Available to Canada and USA from Edmonton Warehouse.
International shipping available by request. Contact Us

Usually ready in 24 hours

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

The  Bahtinov mask  is used focus sma 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.

This 200mm mask is great 8" SCT or RC telescopes   (Celestron C8's and EDGE HD800)

Fits dew shields with an outside diameter of 212-252mm