Lumicon retailer Deep-Sky Telescope Filter

Product Name: Lumicon retailer Deep-Sky Telescope Filter
Lumicon Deep-Sky Telescope Filter Lumicon 1.25” Deep-Sky Lumicon's Most Popular Nebula Filter -Blocks All High And Low Pressure Mercury And Sodium Vapor Lamp Light, Neon Lights, And Air Glow While Transmitting The Rest Of The Visible Spectrum -Enhances Contrast Of Nebula Under Both Light Polluted And Dark Skies -Passes Infrared Light Making It An Excellent Filter For Photographing Deep Space Objects -Provides High Contrast Views Of The Martian Polar Caps -Recommended For Telescopes 3” In Aperture And Larger Sticker On Case Reads “Lumicon Deep Sky Filter, For Nebulae And Galaxies, Lumicon, 2111 Research Dr. #5, Livermore, CA, 94550” Sticker On Back Reads: “Filter Transmission % Hydrogen-Beta 486nm 91 Oxygen III 501nm 90 Hydrogen-Alpha retailer 656nm 91 496nm 90” Perfect For Deep Space Viewing And Photographing!Comes In Original Case And In Excellent Condition! See My Other Listings For More Lumicon Filters!.