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
- Bahtinov Focusing Mask
Original: $90.00
-65%$90.00
$31.50

Description
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
- Bahtinov Focusing Mask

















