Telescope Focusing Mask, Bahtinov Mask Acrylic 120 to 160mm for Astrophotography Astronomical Accessories 120-160mm Deep Space Plate

• 【Perfect 】: The focusing plate overcomes the visual condition and can quickly and easily provide perfect for your telescope. At the same time, it can effectively protect the of the telescope.
• 【3-Screw Sleeve】: Telescope Focusing Mask 3-screw sleeve with non-slip silicone cover is used to secure the telescope and prevent slipping while keeping the tube perfectly centered. Improved shooting stability.
• 【High Quality Material】: The telescope focusing mask is made of high quality acrylic, which is durable, reliable, not easy to break and damage, and has a long service life.
• 【Applicable】: Telescope plate is suitable for different telescopes, such as mirrors, refractors, for Dobsonians, for Mak Cas, for SCT, you just need to measure the size of the telescope tube. The outer diameter of the mask supports the telescope objective lens in the range of 120‑160mm (there is a 1‑2mm error in manual measurement).
• 【Light and Portable】: The acrylic telescope focusing mask is light in weight, will keep the balance of the telescope, and is guaranteed to be centered during installation. Easy to carry and use anytime.

Description Specification: Item Type: Telescope Mask Material: Acrylic Thickness: Approx. 2mm / 0.08in Color: As Pictures Shown Weight: Approx. 46g / 1.6oz The Outer Diameter Size Range of the Telescope Objective Lens Is Supported: Approx. 120-160mm / 4.7-6.3in (there is an error of 1-2mm in manual measurement) Package List: 1 x Bahtinov Mask 3 x Mounting Accessories