The William Optics Bahtinov Mask is made from a sheet of optical acrylic and provides diffraction spikes that are about three (3) times brighter than those created by the standard Bahtinov masks made of metal. The Diffraction Spikes Bahtinov Focusing Mask provides 92% light transmission to make focusing easier. This mask fits a telescope or dew shield with an outside diameter of 105mm through 148mm.
Brand: William Optics 
Telescope Accessories
Telescope AccessoriesBahtinov Mask 105mm-148mm
ر.ع.0.000
The William Optics Bahtinov Mask is made from a sheet of optical acrylic and provides diffraction spikes that are about three (3) times brighter than those created by the standard Bahtinov masks made of metal. The Diffraction Spikes Bahtinov Focusing Mask provides 92% light transmission to make focusing easier. This mask fits a telescope or dew shield with an outside diameter of 105mm through 148mm.
Out of stock
| Weight | 0.1 kg |
|---|---|
| Dimensions | 19 × 19 × 5 cm |
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Model Number: BM-DS-GR55
Focus Masks & Caps Known to Fit: 105 mm to 148 mm (4.13″ to 5.82″) Dew Shields
Warranty: William Optics 2 Years
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