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Baader Planetarium 65x65mm Square 4.5nm Ultra-Narrowband Oxygen-III CCD Imaging Filter, Unmounted

SKU: AAFIIINUSQ65 MFR: FOIIINU-SQ65
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Key Features

  • Capture stunning nebula details with this 65mm Oxygen-III CCD imaging filter.
  • Experience superior blocking performance, reducing unwanted light pollution effectively.
  • Achieve exceptional image contrast with this ultra-narrowband 4.5nm filter.
  • Enjoy long-lasting use thanks to the durable, dielectrically coated filter material.
  • Customize your setup; this unmounted filter offers threaded compatibility options.
  • Optimize your astrophotography with precise Oxygen-III transmission for clear images.
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Special Order?Estimated to Ship: 08/17/2025
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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)

  • Half Bandwidth

    4.5nm

  • Central Wavelength

    502nm

  • AR-coating

    Dielectrically coated, plane optically polished

  • Filter Size

    65 x 65mm (2.56 x 2.56")

  • Filter Usage

    CCD, IR-Cut, O-III

  • Filter Mounted

    Unmounted

  • Type of Filter

    Narrowband

  • Filter Shape

    Square

  • Weight

    0.073kg (0.16 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

Just introduced to the market is the 65x65mm Square 4.5nm Ultra-Narrowband Oxygen-III CCD Imaging Filter, unmounted, a high-quality and durable product from the reputable brand, Baader Planetarium. This advanced and innovative filter is specifically designed for astrophotography, offering unparalleled efficiency in capturing detailed images of celestial bodies in the night sky.

Engineered for fast optical systems ranging from f/8 to f/3, this premium-grade Oxygen-III CCD filter is IR-blocked to ensure the highest level of image clarity. The filter's unique design effectively eliminates common issues such as halos, reflections, and ghosting, providing you with crisp, clear images every time.

Moreover, the filter features non-ageing sealed coating edges, ensuring its longevity and consistent performance over time. This makes it an ideal choice for both amateur and professional astrophotographers who demand the best in their equipment.

The 65x65mm Square 4.5nm Ultra-Narrowband Oxygen-III CCD Imaging Filter is not just a tool, but a gateway to exploring and capturing the wonders of the universe in stunning detail. Experience the difference today with this exceptional piece of optical technology.

Baader Planetarium Filter Features

  • High-quality 65x65mm Square 4.5nm Ultra-Narrowband Oxygen-III CCD Imaging Filter, ideal for astrophotography
  • Manufactured by reputable brand Baader Planetarium, known for advanced optical products
  • Designed for fast optical systems ranging from f/8 to f/3, ensuring wide compatibility
  • IR-blocked for superior image clarity, free from halos, reflections, and ghosting
  • Features non-ageing sealed coating edges for long-lasting durability and consistent performance
  • Perfect tool for capturing detailed images of celestial bodies, enhancing your night sky exploration experience

Warranty Information

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

Key Features

  • Capture stunning nebula details with this 65mm Oxygen-III CCD imaging filter.
  • Experience superior blocking performance, reducing unwanted light pollution effectively.
  • Achieve exceptional image contrast with this ultra-narrowband 4.5nm filter.
  • Enjoy long-lasting use thanks to the durable, dielectrically coated filter material.
  • Customize your setup; this unmounted filter offers threaded compatibility options.
  • Optimize your astrophotography with precise Oxygen-III transmission for clear images.

What's in the box:

  • Baader Planetarium 65x65mm Square 4.5nm Ultra-Narrowband Oxygen-III CCD Imaging Filter
  • Stackable Filter Box
  • Baader Planetarium 2 Year Limited Warranty