Optolong L-eNhance Dual Narrowband Filter - 2" nebula 6 Connection thread on the pull-out

Connection thread on the pull-out side: M92 x 1 and M68 x 1 female threads as well as 2" and 1

Aperture ratio: f/11

Astrophotographers will appreciate fine stars because of the small secondary mirror and in combination with suitable coma-correctors

Software demands: USB 3

Optolong L-eNhance Dual Narrowband Filter - 2" nebula 6 Connection thread on the pull-outThe L enhance Filter is a Tri band filter, perfect for deep sky nebula photography from the city as it uses tight narrowband limits blocking out unwanted glow from the city. 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 camera but this can be expensive and might also require the purchase of several types of