Altair Quad-Band 2" Filter for OSC CMOS, CCD and Modified or Unmodded DSLR cameras.
This is the new QuadBand V2 Coating technology which includes:
Anti-Halo coating on both surfaces to reduce reflection artefacts from reducers and camera lenses.
Increased blocking of UV, IR and unwanted visual range wavelengths. UV OD7 (T0.00001%) Visual OD5 (T0.001%) and IR OD4 (T0.01%) for the ultimate in skyglow blocking.
Higher transmission % of desired wavelengths Ttop 95% (Average 5% higher transmission of desired wavelengths).
Ha and Oiii wavelengths at 35nm FWHM for with less tail-off to reduce unwanted light pollution.
SkyTech Quad-Band EOS Clip Filter for DSLR cameras (including astro-modified) Narrowband Bi-Colour imaging is a growing new trend in astrophotography, especially popular in light polluted areas, or for imaging in rural areas in moonlight.
SkyTech TriBand Canon EOS Clip Filter Narrowband Bi-Colour imaging is a growing new trend in astrophotography, especially popular in light polluted areas, or for imaging in rural areas in moonlight.
Narrowband Bi-Colour imaging is a growing new trend in astrophotography, especially popular in light polluted areas, or for imaging in rural areas in moonlight.
This dual band filter is designed to drastically reduce the effect of light pollution, it isolates the nebulae´s emissions into H-Alpha (red) and OIII (green-blue) and blocks light pollution.
Transmits the main nebula lines at 656.3 nm and 500.7 nm with 3 nm bandpass
Blocks light pollution and skyglow
Designed mainly for astrophotography
Especially suited for color cameras
Ideal for urban areas with extreme light pollution
Incorporates UV/IR cut filter
Multi layers anti reflection coating
Ultra thin filter cell maximises compatibility with filter wheels