ZWO 36mm OIII 7nm Narrowband Filter - OIII7nmD36 80mm refractor The M42 connection is removable

The M42 connection is removable and can be replaced with an optional M48 threaded adapter for full frame cameras

Diagonal: Patented built-in Binoviewer

Rocker length 37"

and better cable management

75 filter thread: M76x1 - M68x1

ZWO 36mm OIII 7nm Narrowband Filter - OIII7nmD36 80mm refractor The M42 connection is removableThe ZWO narrowband OIII 7nm filter is designed for nebula observation by allowing a 7nm bandwidth of light to be centered on a wavelength of 500nm (which corresponds to OIII emission lines), and blocking out all other light. Adding the ZWO OIII Narrowband filter to your imaging collection will help you go beyond RGB imaging and will help capture your favorite nebulas in a new light, no matter how polluted your skies may be! This ZWO OIII 7nm Filter is