William Optics

Diffraction Spikes Bahtinov Focusing Mask for Telescopes Dew Shield Diameter From 75mm -110mm

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Your Price: $64.99
Diffraction Spikes Bahtinov Focusing Mask for Telescopes Dew Shield Diameter From 75mm -110mm
SKU:
BM-DS-GR45
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Product Overview

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.

For dewshields 75 - 110mm in diameter

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