Optolong L-eXtreme Dual Narrowband Filter - 1.25" smartphone camera Astronomy PC software Stellarium (via

Astronomy PC software Stellarium (via download )

Maximum possible width of the binoculars: 290mm

For Solar viewing we have dedicated filters and Telescopes available for this purpose

Dimensions: 275 x 205 x 82mm

the axis cross of the mount weighs just 9

Optolong L-eXtreme Dual Narrowband Filter - 1.25" smartphone camera Astronomy PC software Stellarium (viaThe L eXtreme Filter is perfect for deep sky nebula photography from the city as it uses much tighter 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 narrowband