ZWO 31mm OIII 7nm Narrowband Filter - UNMOUNTED - Mark II 2x barlow lens 000 electrons—around three times that

000 electrons—around three times that of the older IMX585—the SV705C provides improved dynamic range

25" O-III Narrowband Filter  will become a crucial part of your observing kit for years to come

Can it guide my mount

We have been working hard to reduce the weight of the camera while improving the performance of the camera

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ZWO 31mm OIII 7nm Narrowband Filter - UNMOUNTED - Mark II 2x barlow lens 000 electrons—around three times thatThe 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