2X Telescope Astronomy Focusing Mask Caliber Fixed Diameter 59-83mm Monocular

2X Telescope Astronomy Focusing Mask Caliber Fixed Diameter 59-83mm Monocular Description

The Bahtinov Mask Made of acrylic. And it has whole anodizing aluminium process
Masks now feature 3 holes which can be attached with 3 screws to prevent the mask from falling all the way to the ground
Perfect focusing for your CCD, DSLR or Webcam in seconds
Light weight so you wont upset the balance your scope

(65-100mm)Suitable for telescopes front end diameter 65mm to 100mm, Universal adaptation, 3 bolts with plastic cover allow the mask to be simply attached to any telescope
(85-120mm)Suitable for telescopes front end diameter 85mm to 120mm, Universal adaptation, 3 bolts with plastic cover allow the mask to be simply attached to any telescope
(105-150)Suitable for telescopes front end diameter 105mm to 150mm, Universal adaptation, 3 bolts with plastic cover allow the mask to be simply attached to any telescope
(150-200)Suitable for telescopes front end diameter 150mm to 200mm, Universal adaptation, 3 bolts with plastic cover allow the mask to be simply attached to any telescope.
(175-220mm)Suitable for telescopes front end diameter 175mm to 220mm, Universal adaptation, 3 bolts with plastic cover allow the mask to be simply attached to any telescope
Colour:black
Material:plastic
Size:59-83mm in diameter,Product size: 60mm

Package Contents:
2 x Telescope Astronomy Focusing Mask
2 x boxes