Baader

A unique filter for many different astronomical tasks. Incomparable in accracy to combinations of generic color filters made of raw polished glass – where surface inaccuracy adds up in the optical wave front to an unbearable degree!

Planoptically Polished with Phantom Coating Group (PCG).

Drastically improves contrast for all reflector telescopes, without loss of brightness!

The BAADER Fringe-Killer Filter minimizes unwanted blue fringing, comparable to a Minus-Violet-Filter, while retaining a very pleasing color balance.

Planoptically polished for the highest image quality. Only 10nm FWHM with a 93% transmission rate. Perfect for planetary observation producing very high contrast levels.

Baader UHC-L Nebula filter with highest transmission, realistic star colors, also usable as highly effective LED-optimized luminance filter for LRGB imaging

An Ideal filter for sun and Moon observation and contrast enhancement in planetary observations.
To screw into any 1¼" - or 2" eyepieces - for example the Baader Herschel prism (#2956500P or 2956500V)

The Solar Continuum Filter is practically a narrow band photosphere filter for solar observation in white light. It provides the highest contrast in the photosphere of the sun.

Baader S-II Narrowband Filter – Precision Grade
6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5. Reflex-Blocker™ hard coated and planeoptically polished

Baader O-III Narrowband Filter – Precision Grade
6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5. Reflex-Blocker™ hard coated and planeoptically polished

Baader H-alpha Narrowband Filter – Precision Grade. 6.5 nm FWHM, recommended for optical systems from f/10 to f/3.5. Reflex-Blocker™ hard coated and planeoptically polished

The Baader IR-Pass filter blocks wavelengths below 685 nm. At these longer wavelengths, planetary images are less disturbed by wavefront distortions in the atmosphere (seeing).

Baader S-II f/2 Highspeed Filter – Precision Grade
6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8
Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs

Baader O-III f/2 Highspeed Filter – Precision Grade. 6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8. Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs

Baader H-alpha f/2 Highspeed Filter – Precision Grade. 6.5 nm FWHM, recommended for extremely fast optical systems from f/3.4 to f/1.8. Specially designed for the special filter requirements when used with fast optics like the Celestron RASA astrographs

2" x 2 mm Baader CMOS RGB-R (595 – 690 nm) Bandpass Filter, suitable from f/15 to f/1.8 – with 2" (M48) filter thread

This premium grade ultra narrowband 4.5nm Baader Sulphur II (S-II) filter is for use with fast optical systems with focal ratios between f/3 to f/8.