ZWO 2" OIII 7nm Narrowband Filter svbony planetary camera OIII filters expand your imaging

OIII filters expand your imaging possibilities

helping preserve contrast and brightness when observing high-detail targets such as the Moon and planets

The question of which full-width-half-maximum (FWHM) is the "best" shows up in emails on our monitor or when talking to customers at fairs very often

Lens side: Nikon F-mount bayonet

ZWO 2" OIII 7nm Narrowband Filter svbony planetary camera OIII filters expand your imagingThe ZWO OIII 7nm narrowband filter is designed for nebula observation allowing 7nm bandwidth of light centred 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 favourite nebulae in a totally new light. No matter how polluted your skies may be! Combine it with H alpha and SII