William Optics Blue Bahtinov Mask Cover For WO 70 Series Telescopes
- William Optics Bahtinov Focusing Mask and Dust Cap
- Innovative Design combines Dust Cover and a Bahtinov Mask in one
- Fits WO 70 Series Telescopes
- Clear Acrylic Sheet design provides 92% light transmission
- Gives the Brightest diffraction spikes to assist focusing
This is a William Optics Blue Bahtinov Focusing Mask and Dust Cap, made from Acrylic material, which is high in light transmission. This design using Acrylic material provides 92% light transmission for the brightest diffraction spikes visibility when you do your focusing. It results in about 3X brighter diffraction spike images than the traditional metal material masks.
This William Optics Bahtinov Focusing Mask and Dust Cap is made to fit the William Optics 70 Series Telescopes. The outer dust cap is easily installed or removed by the user, which reveals the built-in Bahtinov Focusing Mask. This innovative design by William Optics is patented and will provide the ultimate in convenience when you are focusing your telescope.
This model of the Bahtinov Focusing Mask and Dust Cap is provided in a Blue color finish.
|Function:||Bahtinov Focusing Mask and Dust Cover|
|Accepts/Fits:||70 Series Telescopes|
|Material:||Acrylic, Clear and Metal|
|Weight:||(Not Available from Manufacturer)|