Narrowband-Filter – CMOS-optimized
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 plane optically polished – with sealed coating edges (Life-Coat™)
- Blackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim
- Optimized for modern CMOS cameras, but excellent for CCD camera technologies
We explicitly warn against observing the sun with a DeepSky 6.5 nm (equivalent to 65 Ångstroem) H-alpha narrowband filter, specialized solar chromosphere, and prominence filters from SolarSpectrum start at 0.8 Ångstroem. Photographic experiments with a camera are theoretically possible, but by no means observe the sun with naked eyes – you endanger your eyesight!
- Increased contrast
- Evermore narrow passbands
- Reflex-Blocker™ coatings, for largest-ever freedom from halos, even under most adverse conditions concerning aux-optics
- FWHM on each filter category carefully designed to allow for 1:1:1 exposures, matched for typical CMOS quantum efficiency and s/n ratio
- Identical filter thickness to existing standards, with utmost care for parfocality
- Blackened edges all around, with filter-lead-side-indicator in the form of a black frontside outer rim, to additionally eliminate any reflection due to light falling onto the edge of a filter
- Each filter is coated individually, with a sealed coating edge (NOT cut out of a larger plate with coatings left exposed, read more)
- Life-Coat™: evermore hard coatings to enable a non-aging coating for life – even in a most adverse environment
5.5 nm FWHM, recommended for optical systems from f/10 to ..
5.5 nm FWHM, recommended for optical systems from f/10 to ..
6.5 nm FWHM, recommended for optical systems from f/10 to ..
31 mm x 2 mm Baader H-alpha Narrowband Filter – Precision ..
36 mm x 2 mm Baader H-alpha Narrowband Filter – Precision ..
2" x 2 mm Baader H-alpha Narrowband Filter – Precision Gra..
50.4 mm x 3 mm Baader H-alpha Narrowband Filter – Precisio..
50 x 50 mm x 3 mm Baader H-alpha Narrowband Filter – Preci..
65 x 65 mm x 3 mm Baader H-alpha Narrowband Filter – Preci..
1¼" x 2 mm Baader O-III Narrowband Filter – Precision Grad..
31 mm x 2 mm Baader O-III Narrowband Filter – Precision Gr..
36 mm x 2 mm Baader O-III Narrowband Filter – Precision Gr..
2" x 2 mm Baader O-III Narrowband Filter – Precision Grade..
50.4 mm x 3 mm Baader O-III Narrowband Filter – Precision ..
50 x 50 mm x 3 mm Baader O-III Narrowband Filter – Precisi..
65 x 65 mm x 3 mm Baader O-III Narrowband Filter – Precisi..
1¼" x 2 mm Baader S-II Narrowband Filter – Precision Grade..
31 mm x 2 mm Baader S-II Narrowband Filter – Precision Grade
36 mm x 2 mm Baader S-II Narrowband Filter – Precision Grade
2" x 2 mm Baader S-II Narrowband Filter – Precision Grade ..
50.4 mm x 3 mm Baader S-II Narrowband Filter – Precision G..
50 x 50 mm x 3 mm Baader S-II Narrowband Filter – Precisio..
65 x 65 mm x 3 mm Baader S-II Narrowband Filter – Precisio..
1¼" x 2 mm Baader H-alpha / O-III / S-II Narrowband Filter..
31 mm x 2 mm Baader H-alpha / O-III / S-II Narrowband Filt..