ZWO 31mm OIII 7nm Narrowband Filter - UNMOUNTED - Mark II 80mm ed refractor DDR3 cache in cooled cameras

DDR3 cache in cooled cameras are increased to 512MB

Compatible with SharpCap

4、LED display can clearly show the current channel and signal strength

The QE peak value reaches 92% at 500nm

the camera is perfect for capturing high-resolution images of galaxies

ZWO 31mm OIII 7nm Narrowband Filter - UNMOUNTED - Mark II 80mm ed refractor DDR3 cache in cooled camerasThe ZWO OIII 7nm narrowband filter is designed for nebula observation allowing 7nm bandwidth of light centered on a wavelength of 500nm, which corresponds to OIII emission lines, blocking out all other light. Adding the ZWO OIII narrowband filter to your imaging collection will help you go beyond the RGB imaging and will help capture your favorite nebulae in a totally new light, no matter how polluted your skies may be! Combine it with H alpha and SII