William Optics Acrylic Transparent Diffraction Spikes Bahtinov Focusing Mask

William OpticsSKU: BM-DS-GR45
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Size: OD: 75mm-110mm
Sale price$57 CAD
Only 1 unit left, ships same day weekdays if ordered by 2pm EST!


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 types.

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