Baader Planetarium 2 Inch 0.9 Neutral Density Filter

Baader's newest addition for Achromat owners. The Semi-APO works like its name implies - delivering an amazingly neutral view, while cutting most of the annoying and contrast-robbing violet fringe that plagues all achromats. The Semi-APO filter ...

Baader Planetarium delivers the latest tool in the planetary imager's bag of tricks. The Baader IR-Pass filter blocks wavelengths below 670 nm. At these longer wavelengths, planetary images are less disturbed by wavefront distortions in the ...

CCD imagers will find Baader's new Narrowband 7nm H-Alpha passfilter to deliver the absolute highest contrast deep sky images of H-II regions, with the shortest exposures possible. Its narrow 7nm FWHM bandwidth has a transmission at H-Alpha of ...