- Transmission of nearly 100% of O-III and H-beta
Transmission of 96% of H alpha
Entire Blocking of annoying wavelengths
Ideal All-round Deep Sky filter even for small telescopes
Not sensitive to humidity or aging
Excellent carrier material. The optical quality of your telescope is not reduced by the filter in any way.
Parfocal with other Astronomik filters
Glass thickness: 1mm
Completely resistant against high humidity, scratches and aging effects
Diffraction limited, the filter will not reduce the optical performance of your telescope!
Astronomik filters are delivered in a high-quality, long lasting, filter box