Collimator

Collimator 

There are 19 products.
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$ 12
Out of stock
NightSky Bahtinov Focusing Mask for Telescopes front end diameter 120mm to get more Precise and Faster Focusing All Metal Construction – Anodizing Aluminium Process The Bahtinov Mask made from Metal, maybe not plastic and has now entire anodizing aluminium procedure. 
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$ 23
Out of stock
NightSky Bahtinov Focusing Mask for Telescopes front end diameter 180mm to get more Precise and Faster FocusingAll Metal Construction – Anodizing Aluminium ProcessThe Bahtinov Mask Made of Metal, not plastic and possesses entire anodizing aluminium procedure. 
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$ 18
Out of stock
The Bahtinov Mask Made of Metal, not plastic.And it has whole anodizing aluminium process. Masks now feature 4 holes which can be attached with 4 screws to prevent the mask from falling all the way to the ground It will take lesstime to achieve perfect focus with your new mask and will mean you spend more time imaging photons rather than focusing them
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$ 40
Out of stock
NightSky Bahtinov Focusing Mask for Telescopes 295mm for More Precise and Faster FocusingAll Metal Construction. Anodizing Aluminium ProcessThe Bahtinov Mask Made of Metal, not plastic.And it has whole anodizing aluminium process. 
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$ 43
Out of stock
Eyepieces: 1.25" and 2" Weight: 78 gr Length: 102 mm A rubber O-ring to keep out dirt
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$ 15
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NightSky Bahtinov Mask for tube with 220mm of outer diameter
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$ 32
Out of stock
NightSky Bahtinov Mask for 245mm Outside Diameter Tubes
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