Baader H-Beta 8.5NM Narrowband CCD Filter 9x50 Very fine adjustment for precise

Very fine adjustment for precise framing of targets

which virtually eliminates chromatic aberration and delivers high-fidelity true-colour images

The EQ5/HEQ5 extension tube extends the height of the EQ5 and HEQ5 mount so it is easier for observer to look into a long refractor

consistent with today’s popular polar alignment apps

Baader H-Beta 8.5NM Narrowband CCD Filter 9x50 Very fine adjustment for preciseH Beta 8. 5nm CCD Narrowband Filter 1. 25" or 2" CCD imagers will find Baader's Premium Narrowband CCD passfilters to deliver the absolute highest contrast deep sky images in H Alpha, H Beta, Oxygen III, and Sulfur II, with the shortest exposures possible. Their ultra narrow bandwidths have extremely high transmissions, while completely rejecting light pollution as well as the important blocking of longer wavelengths. The high optical quality of the