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Special Purpose

Specialist filters including versions to minimise Chromatic Abberation on Achromat Refractors

6 Item(s)

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  1. Bresser Polarising Filter 1.25"

    Bresser Polarising Filter 1.25"

    1.25" Polarizing Filter, to be used with the LUNT 1.25" White Light Solar-Wedge / Herschel-Wedge (0558211).​ Learn More
    £30.00
  2. Bresser Polarising Filter 2"

    Bresser Polarising Filter 2"

    2" Polarizing Filter (1 unit), to be used with the LUNT 2" White Light Solar-Wedge / Herschel-Wedge (0558201). Learn More
    £44.00
  3. Explore Scientific 1.25" Variable Polarising Filter

    Explore Scientific 1.25" Variable Polarising Filter

    Explore Scientific 1.25" Variable Polarising Filter Learn More
    £44.00
  4. Contrast Enhancement 1.25"

    Contrast Enhancement 1.25"

    The CE1 will not darken the sky as much as an LPR filter, but will increase overall contrast between stars and the sky background. The spectral region with significant light scatter is toward the blue (440-470nm). Learn More

    Regular Price: £63.00

    Special Price £44.10

  5. Sirius Optics Minus Violet Filter 1.25"

    Minus Violet Filter 1.25"

    Sirius Optics have produced this specialized corrective filter that greatly reduces the false colour fringing of blue-violet light. Learn More

    Regular Price: £63.00

    Special Price £44.10

  6. Minus Violet Filter 2"

    Minus Violet Filter 2"

    Sirius Optics have produced this specialized corrective filter that greatly reduces the false colour fringing of blue-violet light. Learn More

    Regular Price: £105.00

    Special Price £73.50

6 Item(s)

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