Multiband-Filters

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High quality filter for CMOS photography with the following features:

  • 1st band, CWL495nm FWHM35nm
  • 2nd band, CWL 660nm FWHM 35nm
  • 1.85mm thick optical glass with 30 arc sec parallelism.
  • UVIR Block and Anti-Reflection Coating.
226.00 €
Delivery date : 1-2 weeks
Altair Dual-Band nebula filter for astro imaging with extreme light pollution, in the city.
249.00 €
Delivery date : 1-2 weeks
This filter transmits only the H and Oiii light from emission nebulae, with almost total suppression of unwanted light....
569.00 €
Delivery date : 1-2 weeks
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.
226.00 €
Delivery date : 1-2 weeks
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.
199.00 €
Delivery date : 3-4 days
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.
199.00 €
Delivery date : 2-3 months
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.
220.00 €
Delivery date : 2-3 months

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
385.00 €
Delivery date : 1-2 weeks