Solomark Bahtinov Focus Mask for Telescopes 60mm-Suitable for 64mm-86mm Diameter Telescope(Metal)

Masks now feature 3 holes which can be attached with 3 screws to prevent the mask from falling all the way to the ground

It will take less than 1 minute to achieve perfect focus with your new mask and will mean you spend more time imaging photons rather than focusing them

Light weight so you wont upset the balance on your scope