1 x 305mm Newtonian Parabolic Reflector Mirror with 80mm Secondary for DIY Astronomical Telescopes (D305F1200 Main Mirror)

Parabolic Device: The D305F1200 features a precision paraboloid primary mirror with an aperture of 305mm and a focal length of 1200mm, ensuring exceptional light capture and clarity for your astronomical observations. DURABLE AND PROTECTIVE COATING - The mirror surface is coated with an aluminum film and a protective layer to prevent scratches and improve durability, which makes it perfect for long-term use in various environments. EASY OPTICAL CALIBRATION - Equipped with a central mark on the primary mirror, this reflector allows for simple optical calibration using an eyepiece or mechanical light dimmer, ensuring optimal performance for your telescope. VERSATILE DIY OPTIONS - Ideal for home telescopes, this primary mirror can be purchased individually or together with secondary mirrors and compatible accessories, meeting your specific needs and preferences. LIGHTWEIGHT AND COMFORTABLE - Weighing about 6kg and thickness about 30mm, this primary mirror is designed for easy handling and installation, making it an excellent choice for both beginner and experienced astronomers.