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Diffraction Spikes Bahtinov Focusing Mask for Telescopes Dew Shield Diameter from 105mm -148mm

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US$48.26 cheaper than the new price!!

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Product details

Management number 215171605 Release Date 2026/04/12 List Price US$32.18 Model Number 215171605
Category

William Optics Diffraction Spikes is an ultra high optical transmission Bahtinov mask which produces the clearest, brightest and longest diffraction spikes facilitating focusing with ease and accuracy.

  • Optical transmission: 92% and above
  • Made with optical grade PMMA material
  • Easy to mount on 3" – 4.2" refractor telescope
UPC 023165078370
Brand William Optics
Finderscope Reflex
Item Weight 5.6 Ounces
Manufacturer William Optics
Manufacturer Part Number BM-DS-GR55

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