Special Solar Filters

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7 Item(s)

  1.   Baader D-ERF Energy Rejection Filter (75 - 180mm)

    Baader D-ERF Energy Rejection Filter (75 - 180mm)

    From: € 295.00 Price excl. German VAT tax (19%): € 247.90
    • D-ERF (Dielectric Energy Reflection Filter) in different sizes
    • Pre-filter to reduce heat during H-alpha observation with SolarSpectrum Filters
    • Plane parrallel plate (without filter cell) with IR-Cut dielectric coating
    • non-ageing sealed coating edges
    • Half-Band-Width (HBW): 80 mm – see also graph
    • Filter WITHOUT cell – 3D-printed filter cells - customized for your telescope, can be ordered in addition (not available as standalone product)
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  2.   Baader Neutral Density Filter (ND 0,6 / 0,9 / 1,8 / 3,0)

    Baader Neutral Density Filter (ND 0,6 / 0,9 / 1,8 / 3,0)

    From: € 45.00 Price excl. German VAT tax (19%): € 37.82
    • Baader Neutral Density Filters ND 0.6 / 0.9 / 1.8 / 3.0.
    • For perfect energy management during Lunar and Solar observation. Suitable for solar observing only as an additional filter!
    • If you need to reduce glare and want to use a filter ahead of the focal point (e.g. before a binocular), then the neutral density filters are just right.
    • Fine optical polish results in no loss of sharpness at high magnifications even with a filter position 20-30cm in front of the focal point.
    • Phantom Group coated. No ghosting, reflections or stray light.
    • Threaded both sides of the glass allows combination with other filters (e.g. Baader Colour Filters).
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  3.   Baader Solar Continuum Filter (540nm)

    Baader Solar Continuum Filter (540nm)

    From: € 80.00 Price excl. German VAT tax (19%): € 67.23
    • Baader Solar Continuum Filter, 10nm / CWL 540nm
    • A must for owners of achromatic refractors. This filter cuts the spectral range transmitting a specific spectral range around 540nm, completely cutting out blue and red wavelengths in an area of the lens system that where the optics are at their sharpest.
    • Enhances contrast and reduces the effect of atmospheric turbulence.
    • This filter must be used in conjunction with a Baader Herschel Wedge or Baader AstroSolar Safety Film for solar observations otherwise eye or equipment damage may occur.
    • Planeoptically polished, non-ageing sealed coating edges.
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  4.   Baader Solar Continuum Filter 1¼" (double stacked)

    # 2458392

    € 170.00 Price excl. German VAT tax (19%): € 142.86
    • 1¼" Double Stacked Baader Solar Continuum Filter. 8nm / CWL 540nm.
    • Includes 1x AstroSolar® Photo Film OD 3.8 20x29 cm. The filter includes two Baader Solar Continuum Filters in a single filter cell which have been stacked for even higher contrast.
    • Enhances the contrast and reduces the effect of atmospheric turbulence.
    • This filter must be used in conjunction with a Baader Herschel Wedge or Baader AstroSolar® Safety Film 5.0 (not included) for solar observations otherwise equipment damage may occur. The included Baader AstroSolar® Photo Film 3.8 must not be used for visual observation but only for solar photography (e.g. lucky imaging).
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  5.   Baader K-Line Filter 1¼" (double stacked)

    Baader K-Line Filter 1¼" (double stacked)

    # 2458355

    € 315.00 Price excl. German VAT tax (19%): € 264.71
    • Warning: for photographic imaging only
    • for solar work use only with 3.8 AstroSolar 200x290mm Photo Film (included)
    • never use any eyepiece filter for solar observation without objective front filter
    • non-ageing sealed coating edges
    • Never look into the sun with the K-Line filter without an additional OD-reduction filter. For more information read the PDF Notes about the stacked 1¼" K-Line Filter
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  6.   Baader Single Polarizing Filter

    Baader Single Polarizing Filter

    € 68.00 Price excl. German VAT tax (19%): € 57.14
    • Baader Polarizing Filter - Ideal filter for solar and lunar observations and contrast enhancement in planetary observations.
    • Fits 1¼ or 2" eyepieces/threads and is screwed before the eyepiece
    • Adjustable brightness when used with a Baader Hershel Wedge
    • Important Note: Polarizer will need additional filtering (eg Herschel Prism or AstroSolar Safety Film) before the eyepiece of the telescope for solar observations.
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  7.   Baader Double Polarizing Filter
    From: € 75.00 Price excl. German VAT tax (19%): € 63.03
    • Baader Double Polarizing Filter - Ideal for solar and planetary observations.
    • For solar work in conjunction with Baader AstroSolar Safety Film or Baader Herschel Wedge Prism (never use any eyepiece filter for solar observation without objective front filter).
    • Rotatable filter cell allows continous adjustment of brightness for comfortable viewing
    • Enhances contrast during planetary observation.
    • Non-ageing sealed coating edges.
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