Celticbird Bahtinov Mask Focusing Mask Telescopes, Aluminum Me | Shop The World
From USA
NewCelticbird
Celticbird Bahtinov Mask Focusing Mask for Telescopes, Aluminum Metal Bahtinov Telescope Astronomy Focusing Mask for Outer Diameter from 144-196mm
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Products from the USA may come with an input voltage of 110V–120V, requiring a step-down transformer. Check the device wattage to select the correct power converter.
•Bahtinov masks take the guesswork out of focusing and even get over the seeing conditions as it is a mathematical type approach to the task.The best focus for your telescope quickly and easily.
•Aluminum metal material. Suit for telescopes which out diameter 144mm to 196mm.
•Masks feature 3 holes which can be attached with 3 screws to prevent the mask from slippage and allow it to remaining central.
•Suitable for use on all types of telescope - reflectors, rafractors, Dobsonians, Mak-Cas and SCTs.
•Light weight so you won't upset the balance on your scope.
From USA
