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 194-256mm
ℹ
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.
•Masks feature 3 holes which can be attached with 3 screws to prevent the mask from slippage and allow it to remaining central.
•Aluminum metal material. Suit for telescopes which out diameter 194mm to 256mm.
•Light weight so you won't upset the balance on your scope.
•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.
•Suitable for use on all types of telescope - reflectors, rafractors, Dobsonians, Mak-Cas and SCTs.
From USA
