Used Hutech IDAS NGS1 Night Glow Suppression Filter - 2" SolarQuest Interface for External Devices

Interface for External Devices

especially in humid conditions

but nothing that noticeable

nonmetallic coating is 99% reflective across the full visual spectrum

Used Hutech IDAS NGS1 Night Glow Suppression Filter - 2" SolarQuest Interface for External DevicesThis is a 2" Hutech IDAS Night Glow Suppression Pollution filter in very good condition. The optics have a small amount of dust on the back side that we have not been able to remove; see the photos. We have reduced the price accordingly to account for this condition issue. This includes the jewel case. Description: The NGS1 is the world first filter that suppresses both man made and night glow interferences to the green, orange and red ranges. This is