1 Accessory for Reflective Astronomical Telescope D150F1200 Improved Planetary Observation (Primary Mirror+Secondary Mirror)

REFLECTIVE MIRRORS - Includes 150mm spherical primary mirror and 35mm short axis secondary mirror for superior light reflection and clarity. Optimal focal length: With a focal length of 1200mm (high focal ratio F8), this lens group is designed for detailed observations of bodies, including planets and moon. PRECISION ENGINEERING - 18mm edge thickness and precision surface shape of 1/6 ensure outstanding performance and image during astronomical observation. DURABLE COATING: Equipped with aluminum coating and protective film to improve durability and longevity, ensuring your telescope will perform optimally for years. EASY INSTALLATION - Designed for DIY enthusiasts, this telescope accessory set includes everything you need to upgrade your reflective telescope for enhanced stargazing experiences.