D106F900 Blue Film D106 Refractor Astronomical Telescope Objective Lens (1 Piece) with Multilayer Coating for Increased Clarity

Optics: The D106 objective lens has a diameter of 106mm and offers two focal length options (600mm and 900mm) for versatile astronomical observations. SUPERIOR COATING: Available in multi-layer blue and green film coatings, ensuring optimal light transmission and lower glare for stunning views. DURABLE CONSTRUCTION - Made of aluminum alloy with an oxidized black finish, this lens is designed to withstand the rigors of outdoor use while maintaining performance. EASY INSTALLATION - Designed to connect perfectly with 110mm PVC pipes, the lens features internal and external threads for secure attachment and stability. PRECISION ENGINEERING - With a combined 1/4-1/8 image and strict tolerances in diameter and focal length, this lens ensures exceptional clarity for both amateur and professional astronomers.