ZWO 850nm IR Pass Filter - 1.25" - 850IR125 85mm Telescopes Focal Length: 1

Focal Length: 1

The diameter is 19" and the height is 30"

and Rowe-Ackermann Schmidt Astrograph optical tubes

The Pleiades 111 is loaded with features sure to take your astrophotography to the next level

6 mm Filter thickness:

ZWO 850nm IR Pass Filter - 1.25" - 850IR125 85mm Telescopes Focal Length: 1This ZWO 1. 25 IR 850nm Pass Filter is suitable for monochrome or color IR sensitive cameras. It allows infrared light with wavelengths of more than 850nm to pass, which helps improve results when imaging the Moon or planets, especially when seeing conditions aren't great or the object is near the horizon. Also, because the IR 850nm Pass filter creates a dark background sky, you can more easily photograph the planets during daytime hours! There's no