Like New Optolong LRGB + SHO 7nm (7 pieces) - 1.25"This is a complete set of Optolong LRGB and SHO filters in perfect, pristine condition no dust, no sleeks, no marks of any kind. We can't tell if these have even ever been used. Save OVER $200 off of the brand new filter set! Complete mono imaging filter set Luminance, Red, Green, Blue + Sodium, Hydrogen, and Oxygen filters. 7 filters in total. The LRGB telescope filter Kit is designed for maximum contrast and with extremely high gradients for clear