Baader Tech

Learn more about the unique quality of Baader’s AstroSolar ™ Safety Film for Solar Observation. The film is suitable for the production of high-quality lens filters to observe the sun with telescopes, binoculars, photo or video cameras. The film is CE-tested and reduces the intensity of sunlight by 99.999% (Optical Density 5.0).

Baader filters are designed and made to very high specifications. They are cut to size, polished plane to a quarter wavelength on both sides and then these polished blanks are submitted for coating. Their filter cells allow the final coated glass filters to be held stress-free to avoid image degradation.

Baader Planetarium’s new f/2-filters are entirely designed and exclusively manufactured to work for a focal ratio range of f/3.5 down to f/1.8. Baader worked very hard and succeeded with a more elaborate and critical filter design with very steep slopes on both sides of the spectral window resulting in a filter with high contrast and smaller-sized stars.

The Baader/Zeiss M68 system is a robust and sturdy connection system between a telescope and accessories such as cameras or spectrographs where zero flexure is essential. Various telescope side (as well as camera/eyepiece) adaptors are available making it a very versatile system.

For over 30 years Baader Planetarium have focused on the Astro T-2 thread system (M 42 x 0.75 mm) as a method of attaching not only cameras, but a wide range of optical accessories such as binoviewers, eyepiece holder, extension tubes and diagonals to telescopes.