2" Neutral Density Moon Filter (BPND18)

Open until 4:30pmIndependent shop in BallardDirections

Available from Cloudbreak Optics when we last checked, in the last two days. Sold from the shop’s own store; the price there is the one that counts.

Description This 2" filter is threaded for 48 mm metric threads. It has a transmission rate of 1.8%, making it an ideal moon filter for large aperture instruments. Use this filter with the AstroSolar Density 3.8 Film for safe solar observation. IMPORTANT! Do not attempt to use this filter without a white-light filter in front of your main telescope optics. While it will supplement the ND 3.8 Photographic Density filter material to yield a safe combined transmission level, it is wholly insufficie