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Diffraction Spikes Bahtinov Focusing Mask for Telescopes Dew Shield Diameter 243-308mm Online Sale

Original price was: $94.99.Current price is: $76.00.

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Diffraction Spikes Bahtinov Focusing Mask for Telescopes Dew Shield Diameter 243-308mm

The new Optical acrylic sheet offers 92% of light transmission that gave you the highest and brightest diffraction Spikes for Focusing! It’s about 3 times brighter than traditional metal type.

The new Optical acrylic sheet offers 92% of light transmission that gave you the highest and brightest diffraction Spikes for Focusing
It’s about 3 times brighter than traditional metal type