1pcs D80 F900 80mm Aperture Refractor Telescope Objective Lens for DIY Optical Experiments (D80F900:Single Film Blue Film)

Refractor Lens: The D80 F900 features an impressive 80mm aperture and a focal length of 900mm, providing clear and accurate astronomical observations for both beginner and experienced astronomers. ENHANCED LIGHT TRANSMISSION - This telescoping lens is equipped with advanced double-separation coatings, which maximize light transmission and minimize glare for an optimal viewing experience in various lighting conditions. Reduction of chromatic aberration: the innovative design uses dual lenses and a spacer to effectively eliminate chromatic aberration, ensuring sharp and clear images of objects. Ideal for DIY projects: for hobbyists, educators and astronomy enthusiasts, this goal allows you to build your own telescopes or perform optical experiments with components for hands-on learning. COMPLETE PACKAGE - Package includes 1 x Refractor Objective Lens; Please note that the visible scratches in the pictures are due to shooting angle and lighting, not lens defects, which ensures you receive a product.