ZWO 31mm Ha SII OIII 7nm Narrowband Unmounted Filter Set (ZWO-NB7NMD31)

ZWO 31mm Ha SII OIII 7nm Narrowband Unmounted Filter Set (ZWO-NB7NMD31)Narrowband 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

Celestron's workhorse CGEM mount lineup has been the German Equatorial backbone for telescopes ranging from 6 to 11 inches of aperture

Astrophotography using intermediary lens systems such as

These doublet refractors deliver dramatic

immerses you in a very comfortable ultra-wide field that naturally promotes relaxation at the eyepiece

3 Fully Assembled Weight (w/ weights) 17

Schmidt Cassegrain 8" Optical Tubes

you'll have the power of a 12mm focal length eyepiece with the 2

The short focal length also lessens equatorial tracking demands

The case is even large enough to carry a few extra accessories

clarity and contrast gets us closer to our "spacewalk" viewing goal

M90x1 male thread

91") Interpupillary Distance (min): 50mm (1