Starboosa Bahtinov Focusing Mask for Telescopes – Upgraded Glass with Laser-Etched Star Pattern & Durable Aluminum Alloy Frame – Compact Design with Hex Key Lock Screws

$33.29$66.5950% off

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**Upgraded Optical Glass with Precision Laser Engraving** – Made from high-transparency optical glass, digitally laser-engraved with skeletal star pattern lines designed for astrophotography. Produces sharper, clearer diffraction spikes for highly accurate focusing.
**Durable Aluminum Alloy Frame** – The circular frame is crafted from lightweight aluminum alloy with an oxidized finish, making it strong, corrosion-resistant, and built to last while maintaining a compact profile.
**Compact & Portable Design** – With an outer diameter of only 2.24" (57mm), height of 0.87" (22mm), and weight of just 1 oz (28g), this Bahtinov mask is easy to carry and convenient for outdoor astrophotography sessions.
**Easy Installation with Locking Screws** – Equipped with three evenly spaced locking screws along the frame, secured with the included hex key. Simply remove the small plastic cap on your telescope’s objective lens cover, insert the mask, and tighten for a secure fit without removing the entire cover.
**Universal Compatibility for Multiple Telescopes** – Fits objective lens covers with an inner diameter of 1.73" to 2.00" (44mm–51mm). Its lightweight, interchangeable design makes it suitable for different telescopes, ensuring flexibility for both beginners and advanced astrophotographers.

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