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2X Telescope Astronomy Focusing Mask Fixed Diameter 59-83mm Monocular
The Bahtinov Mask Made of acrylic. And it has whole 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...
$9.90 Free Delivery
