OPTOLONG CLS FILTER Tilter Earth rotates with respect to

Earth rotates with respect to astronomical objects

ZWO AM5 (with adapter #30A155) and Sharpstar Mark III (with adapter TE-PIER2000-MARK3)

you can use all the aperture you paid for

Supported gear

plus 30% faster FPS in video mode

OPTOLONG CLS FILTER Tilter Earth rotates with respect toThe Optolong CLS (City Light Suppression) broadband filter is designed to improve the visibility of emission deep sky objects. It selectively reduces the transmission of wavelengths of artificial light, specifically those produced by mercury vapour lamps, both high and low pressure sodium vapour lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere (i. e. skyglow). The high transmission in the main nebula emission