Baader Narrowband CCD Filters.

Baader Narrowband CCD Filters.

New Narrowband CCD Filters From Baader
Planetarium.
 

Baader Narrowband CCD Filters.CCD imagers will find Baader's new 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 Baader narrowband filters guarantees no loss in sharpness or contrast. Each substrate is fine-optically polished plane parallel to deliver a smooth and accurate 1/4 wavefront over the entire surface. This special custom polishing operation sets Baader filters apart from the standard commercially precision polished filter substrates used by most other filter manufacturers. Coatings are professionally applied by the most sophisticated equipment available, ensuring high consistency for bandpass centering and transmission. The ultra-hard ionbeam deposition ensures the coatings will never degrade from use or normal cleaning. These filters are available in three sizes, standard 1¼", 2", and a 50.8mm diameter bare
substrate (unmounted) for use in SBIG STL cameras.

You are buying from an authorized Baader Planetarium UK dealer.