Baader F/2 Highspeed Filter H-Alpha Size::31mm Secondary Mirror Obstruction by Diameter:

Secondary Mirror Obstruction by Diameter: 36%

detailed objects that pop off the black sky background with superior contrast

NWA 6392 is a Brecciated Diogenite

Each SkyMaster model features high quality BAK-4 prisms and multi-coated optics for enhanced contrast

Baader F/2 Highspeed Filter H-Alpha Size::31mm Secondary Mirror Obstruction by Diameter:Baader F 2 Highspeed Filter H Alpha CCD imagers will find that Baader's new Narrowband 7nm H Alpha pass filter delivers the absolute highest contrast deep sky images of H II regions, all with the shortest exposures possible. Its narrow 7nm FWHM bandwidth has a transmission at H Alpha of over 90%, while completely rejecting light pollution. The high optical quality of the Baader 7nm H Alpha filter guarantees no loss in sharpness or contrast. Each