ZWO 36mm Ha SII OIII 7nm Unmounted Filter Set (ZWO-NB7NMD36) Ethos 54 kg) Slew Speeds: 9

54 kg) Slew Speeds: 9 slew speeds - max speed 3°/second Tracking Rates: Sidereal

Viewing through Ultima® binoculars is comfortable for both eyeglass wearers and non-eyeglass wearers

About coating: the interference filter will show different colours under different light

Compare with the moon & Skyglow filter before the naked eye

44 kg) MOUNT INFO: Mount Type: Omni CG-4 Equatorial Tripod Leg Diameter: 1

ZWO 36mm Ha SII OIII 7nm Unmounted Filter Set (ZWO-NB7NMD36) Ethos 54 kg) Slew Speeds: 9Narrowband filter do not eliminate the effects of light pollution or increase the objects brightness. In many cases, they increase the contrast between nebula and night sky, not brightening the nebula. The ZWO H Alpha filter has a bandpass of 7nm and passes light at 656nm wavelength, light transmission rate comes up to 80%. Best choice of narrowband H alpha astrophotography filter for high contrast imaging and revealing rich details of the nebula even