1 Wide Range of Applications: Works with all types of telescopes, mirrors, refractors, for Dobsonians, for Mak Cas and for SCT, all you need to do is measure your telescope tube size and choose the appropriate mask size.Item Type: Telescope Focus Mask
Material: Acrylic
Thickness: Approx. 2mm / 0.08in
Color: As Pictures Shown
Weight: Approx. 21g / 0.7oz
The Outer Diameter Size Range of the Telescope Objective Lens Is Supported: Approx. 60-90mm / 2.4-3.5in (there is an error of 1-2mm in manual measurement)
What's in the box
1 x Bahtinov Mask
3 x Mounting Accessories
