William Optics Blue Bahtinov Mask Cover- For WO GT102 and Z103 Telescopes - CPBM-102BU

William Optics Blue Bahtinov Mask Cover- For WO GT102 and Z103 Telescopes

• William Optics Bahtinov Focusing Mask and Cover
• Innovative Design combines Dust Cover and a Bahtinov Mask in one
• Fits WO GT102 and Z103 Telescopes
• Clear Acrylic Sheet design provides 92% light transmission
• Gives the Brightest diffraction spikes for focusing

This is a William Optics Blue Bahtinov Focusing Mask Cover 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 Cover is made to fit the William Optics GT102 and Z103 Telescopes. Outer Dust Cap is easily installed or removed by the user, which then 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 Cover is provided in a Blue color finish.

Specifications: