Bahtinov Mask Focusing Mask for Telescopes, CelticBird 140mm Telescope Focusing Mask for a Tube Outer Diameter from 135mm-185mm
R 743
or 4 x payments of R185.75 with
Availability: Currently in Stock
Delivery: 10-20 working days
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Bahtinov Mask Focusing Mask for Telescopes, CelticBird 140mm Telescope Focusing Mask for a Tube Outer Diameter from 135mm-185mm
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.
Suit for telescopes which out diameter 135mm to 185mm.
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.