Baader IR-Pass Filter (685 nm)

Baader IR-Pass Filter (685 nm)
Starting at: € 79.00 Price excl. German VAT tax (19%): € 66.39
  • Baader IR-Pass Filer HWB 685nm
  • Reduces the effect of seeing resulting in a much sharper image.
  • Tip for use: Ideal for imaging and used for the luminosity channel.
  • The effect of use: The normal spectral bandwidth is 400-700nm. This filter starts at 670nm in the deep red, just in the visual range so it can be focussed correctly. At this long-wavelength spectral range the atmospheric air turbulence (seeing) has much lower impact on the sharpness. Dark structures on Mars, Jupiter the Moon and the Sun are thereby rendered much sharper. The luminosity can then be combined with RGB creating a very sharp LRGB image.
  • Highly recommended for any planetary imager.
  • Reflex free anti-reflective and optically polished.

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Starting at: € 79.00 Price excl. German VAT tax (19%): € 66.39

Product Questions

Whats the actual size of 2" UV/IR cut filter in "mm" with and without frame/ring?
What step down adapter is suggested from a 52 mm to "-- mm"?
Question by: Waqas Ahmad on Oct 10, 2016 7:54:00 PM | 1 Answer(s)
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Additional Information

Manufacturer Baader Planetarium
SKU (#) ir-pass
Filter mounted Mounted (LPFC 6mm)

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