Optolong L-eXtreme Dual Narrowband Filter - 2" Moon Filter 350mm Focal Length solar telescope

350mm Focal Length solar telescope which provides a bandwidth of <0

8 quadruplet flatfield apochromat

Lateral stray light from street lights can also enter the lens which reduces contrast and often cause unwanted reflections in photographs

The Y power cord is designed to connect in-line with the camera's cooler power supply for convenience

because at their larger size

Optolong L-eXtreme Dual Narrowband Filter - 2" Moon Filter 350mm Focal Length solar telescopeL eXtreme Filter is absolutely perfect for deep sky nebula photography from the city as it uses much tighter narrowband limits. The relentless spread or urbanization and its associated light pollution have become a big problem for all amateur astro photographers around the world. One solution is to purchase a Mono camere but this can be extremely expensive and might include the purchase of several types of narrowband filters and a filter wheel. These