Astronomik 1.25"/2" L-3 Luminance UV/IR Block Filters (ASK-UV-IR-BLOCK) Diameter:1.25" (-125) 99 Lens Coatings: Fully Multi-Coated

99 Lens Coatings: Fully Multi-Coated Prism Glass (Type): Bak-4 Prism Coatings: Phase Coated Weight: 28

Cable management at the base of the shield—perfect for using the Fastar/Hyperstar configuration or using in conjunction with the Celestron Dew Heater Rings

or have to squint through tiny eye lenses

55 arc seconds Resolution (Dawes): 1

81% Optical Coatings: Fully Coated Optical Tube Length: 914mm (36") Optical Tube Weight: 22 lbs (9

Astronomik 1.25"/2" L-3 Luminance UV/IR Block Filters (ASK-UV-IR-BLOCK) Diameter:1.25" (-125) 99 Lens Coatings: Fully Multi-CoatedThe Luminance channel is probably the most important for a great final image! You want as much signal as possible so the filter should have the highest transmission possible with a wide spectral bandpass. This combination provides the greatest sensitivity and gives you the highest photon counts on your pixels. While the high transmission level is a great aspect of the new Astronomik Luminance filters, not all optical instruments or additional optical