ZWO 2" SII filter 7nm (ZWO-SII7NMD2)

ZWO 2" SII filter 7nm (ZWO-SII7NMD2)Narrowband filter does 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 narrowband S II 7nm filter passes light at 672nm wavelength with a bandpass of 7nm which is designed for nebula observation. It is suitable for visual observation on most emission nebulae, planetary nebulae and supernova remnants, use it with

reduced pincushion

so DIOPTRX can be installed

General Mount Info Mount Type High-capacity motorized equatorial (EQ) GoTo Yes Payload Capacity (lbs) 110 Mount Head Height (head by itself) 19

21") and 2

ST4 Port: can be used connect with auto guide port of mount

In our effort

Specifically assembled to complement their TV-76 and TV-85 APO refractor optical tube assembly

the M43 thread (system thread 1) accessories

16") Back focus from top of threaded collar: 72

but it can also be a very fun way to tour around the sky

It scans the night sky and analyzes the star patterns overhead

every mirror is optically inspected under conditions far more critical than a diagonal mirror is ever used in typical telescopes