Upgrade your astronomical telescope with the D114F450 Parabolic Reflector Lens, devised for superior image clarity and precision. Features a 114mm diameter primary mirror and a 35mm secondary mirror, perfect for DIY enthusiasts looking to enhance their telescope performance. The lens surface is coated with aluminum and protective film, ensuring durability and optimal light reflection for clearer views. Easy to maintain: clean the mirror surface with a simple procedure using absorbent cotton and alcohol for a spotless finish. Compatible with various telescope setups; select between primary mirror, secondary mirror, or complete accessory kit based on your needs.