- Blocks wavelengths below 670 nm
- Overall image sharpness is enhanced
- High optical quality
- High efficiency multicoatings
- 2" filter
The Baader Planetarium IR Pass Telescope Filter is great for the planetary imager. The Baader IR Pass filter blocks wavelengths below 670 nm. At these longer wavelengths planetary images are less disturbed by wavefront distortions in the atmosphere (seeing). By combining a luminance image taken with the IR Pass filter along with RGB frames overall image sharpness is significantly enhanced. Some of the world s best amateur planetary images have been taken with this technique. The Baader Planetarium IR Pass filter shares the same outstanding features as all the other Baader filters. High optical quality Striae free substrate and high efficiency multicoatings result in the sharpest and highest contrast image possible.