ZWO 31mm Ha 7nm Unmounted Filter (ZWO-HA7NMD31)

ZWO 31mm Ha 7nm Unmounted Filter (ZWO-HA7NMD31)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

6 Tripod Weight (lbs) 7

5 Resolution (Rayleigh) 1

at a price to fit your budget

25" and 2" nosepieces without the much hated undercuts

2oz) - without lens Working Temperature -5ºC - 45ºC Working Relative Humidity 20% - 80%

6mm (13" x 9

suitable to supply highest contrast and sharpness in combination with your telescope or camera tele-lens

no matter how polluted your skies may be

M48 rings are to be used on the Esprit and ProED series when using the dedicated field correctors

It can provide excellent vistas of star fields

slip Paracorr Type-2 into your focuser like a Barlow lens

The difference is especially apparent in low light conditions