Baader Planetarium 50x50mm Square f/2 High-speed Oxygen-III Nebula Filter
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Baader Planetarium 50x50mm Square f/2 High-speed Oxygen-III Nebula Filter, Unmounted

SKU: AAFIIIHSSQ50 MFR: FOIIIHS-SQ50
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Key Features

  • Enhance your astrophotography with this 50x50mm Oxygen-III nebula filter for stunning detail.
  • Experience maximum contrast on fast astrographs with this high-speed narrowband filter.
  • This unmounted square filter is dielectrically coated and plane optically polished for clarity.
  • Achieve superior image quality with a central wavelength of 502nm using this O-III filter.
  • Optimize your CCD imaging with this filter, designed for f/2 high-speed telescopes.
  • Explore deep-sky objects using this Baader Planetarium filter, perfect for H-alpha viewing.
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Review Summary

2019-05-29T16:43:43

Rated 5 out of 5

The perfect mounting cell for eclipse photographers

AstroSolar film is the standard for white light solar filters. This mounting cell has two great advantages for eclipse photographers. The wide flange shades your camera avoiding overheating. The external 3 rubber bumper attachment is easy to remove and replace quickly without disturbing your aim. This is a great advantage for totality in a total solar eclipse. Highly recommended

Robert P.

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Baader Planetarium Filter Specifications

  • Transmission Range

    Oxygen-III

  • Filter Thickness

    3mm (without Cell)

  • Central Wavelength

    502nm

  • AR-coating

    Dielectrically coated, plane optically polished

  • Special Functions

    Maximum Contrast for fast Astrographs

  • Filter Size

    50 x 50mm (1.97 x 1.97")

  • Filter Usage

    CCD, f/2 High-speed, H-alpha

  • Filter Mounted

    Unmounted

  • Type of Filter

    Narrowband

  • Filter Shape

    Square

  • Weight

    0.059kg (0.13 lbs)

About Baader Planetarium Filter

FEATURED REVIEWS

The perfect mounting cell for eclipse photographers

By Robert P.

AstroSolar film is the standard for white light solar filters. This mounting cell has two great advantages for eclipse photographers. The wide flange shades your camera avoiding overheating. The external 3 rubber bumper attachment is easy to remove and replace quickly without disturbing your aim. This is a great advantage for totality in a total solar eclipse. Highly recommended

• Highspeed Narrowband Filter, designed especially for the delicate requirements of extremely fast astrograph optics, in particular Hyperstar and RASA
• Conventional narrowband filters cause a heavy loss in transmission due to the strong CWL-shift. In extreme cases the CWL even does shift out of the FWHM. Therefore these filters have a CWL-preshift which matches f/2 to f/3 perfectly
• The FWHM is optimized. In spite of the typical line broadening with such fast optical trains they are able to deliver maximum contrast
• For the first time these filters allow to use fast optics really effectively with high contrast emission nebulae imaging. Using these filters between f/1.8 and f/3.5 shows a dramatic improvement compared to any regular set of narrowband-filters

Warranty Information

This product has a limited warranty of 24 months for parts and 24 months for labor.

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Key Features

  • Enhance your astrophotography with this 50x50mm Oxygen-III nebula filter for stunning detail.
  • Experience maximum contrast on fast astrographs with this high-speed narrowband filter.
  • This unmounted square filter is dielectrically coated and plane optically polished for clarity.
  • Achieve superior image quality with a central wavelength of 502nm using this O-III filter.
  • Optimize your CCD imaging with this filter, designed for f/2 high-speed telescopes.
  • Explore deep-sky objects using this Baader Planetarium filter, perfect for H-alpha viewing.

What's in the box:

  • Baader Planetarium 50x50mm Square f/2 High-speed Oxygen-III Nebula Filter
  • Stackable Filter Box
  • Baader Planetarium 2 Year Limited Warranty