Focusing Mask For Telescopes 120-160mm Outer Diameter Acrylic Astrophotography Accessory For All Tube Types From Dobsonians To Refractors Hassle Free Alignment So You Can Dial In Sharp, Clear Stars Every Session
✔️ Aligned with three metal posts for centered fit and easy setup
This Bahtinov focusing mask is an acrylic astrophotography accessory designed to help you dial in sharp focus for telescope tubes with an outer diameter of 120 to 160 mm. It fits all tube types, including Dobsonians, Mak Cas and refractors, making setup in the field quick and easy.
✅ Outer diameter supports 120-160 mm (1-2 mm manual measurement tolerance)
✅ Three metal posts with scratch silicone covers for gentle, non-slip grip
✅ Post mount keeps the mask centered and fits a wide range of tube sizes
✅ Lightweight acrylic design minimizes balance impact during use
✅ Works with all telescope types including Dobsonians, Mak Cas and refractors
💡 What is a Bahtinov focusing mask and how does it help you achieve precise telescope focus?
The diffraction pattern guides you to the exact focus, making alignment quicker and star images sharper.
Handy benefits include:
- precise focus guidance for astrophotography
- works with 120-160 mm outer diameter tubes
- lightweight acrylic design minimizes balance changes
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