William Optics Bahtinov Mask for 75-110mm Diameter Dew Shields

This William Optics Bahtinov Mask attaches to your telescope's dew shield with diameter compatibility between 75 to 110mm. This Bahtinov Mask will fit the following telescopes:

• Radian 61
• Meade 6000 Series 70mm Quadruplet
• William Optics ZenithStar 61
  
• William Optics ZenithStar 73
• William Optics ZenithStar 81
• William Optics Gran Turismo 71
• William Optics Gran Turismo 81
• Most 70mm and 80mm aperture refractor telescopes