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Player One UV/IR-Cut Anti-Halo Filter - 2"

Player One UV/IR-Cut Anti-Halo Filter - 2"

by Player One
SKU POA-AH-UV-IR-CUT-2
CA$83.00 - CA$83.00
CA$83.00
CA$83.00 - CA$83.00
CA$83.00
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  • Blocks unwanted Ultraviolet (UV) and Infrared (IR) wavelengths
  • Features advanced anti-halo coatings to minimize reflections
  • Standard 2" filter cell with M48x0.75 threads
  • Maximizes contrast and sharpens stars in color and monochrome imaging
  • Essential for refractive and catadioptric telescopes
2 in stock
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  • Description
  • FAQ
  • Specifications
  • In the Box
  • Warranty

  • Player One UV/IR-Cut Anti-Halo Filter - 2"

    The Player One UV/IR-Cut Anti-Halo Filter provides critical ultraviolet and infrared blocking in a standard 2" threaded cell, using advanced coatings to eliminate halos around bright stars for cleaner, higher-contrast astronomical images.

    A 2" Filter for Sharper Stars and Higher Contrast

    While your camera sensor is sensitive to a wide spectrum of light, most telescopes are only designed to bring visible light to a sharp focus. Out-of-focus UV and IR light creates a soft, low-contrast halo around stars, commonly known as "star bloat," which degrades image sharpness. This 2" filter blocks those unwanted wavelengths, ensuring only focused, visible light reaches the sensor.

    The result is immediately apparent in your images: stars become tighter, finer details emerge in nebulae and galaxies, and the overall contrast of the image is significantly improved. It is an essential component for any imaging setup using a refractor, Schmidt-Cassegrain, or any other compound telescope design.

    Suppressing Halos and Internal Reflections

    Beyond simple UV/IR blocking, the Player One filter incorporates multi-layer anti-reflection coatings specifically designed to combat halos. Halos are caused by bright starlight reflecting between the filter surface and the camera sensor cover glass. This filter's coatings disrupt these internal reflections, preventing distracting rings from forming around bright targets like Vega or Alnitak.

    This anti-halo technology is particularly crucial for modern, highly-reflective CMOS sensors. By minimizing these artifacts at the source, you spend less time processing them out and achieve a cleaner final image straight from the camera.

    Player One UV/IR-Cut vs. Standard Luminance Filters

    While both this filter and a standard Luminance (L) filter perform the same core function of blocking UV and IR light, the Player One Anti-Halo filter is engineered for a different challenge. Many basic L-filters can still produce noticeable halos and internal reflections when used with bright stars and sensitive modern sensors.

    • Standard L-Filter: Primarily focused on cutting UV/IR wavelengths. It is effective for basic luminance data collection but may struggle with reflections on bright targets.
    • Player One Anti-Halo Filter: Provides the same UV/IR cut but adds advanced coatings optimized to suppress the internal reflections that cause halos. It is the superior choice for imagers who demand the cleanest possible raw data, especially when shooting targets in star-rich fields.

  • When do I need the Player One 2" UV/IR-Cut filter?

    This filter is essential for nearly all astronomical imaging with a color or monochrome camera, especially when using a telescope that is not a pure reflector (like a Newtonian). Refractors, SCTs, Maksutovs, and RCs all benefit significantly, as they do not focus UV and IR light at the same plane as visible light, which causes bloated stars. This filter corrects that by only allowing visible light to pass.

    Will this Player One filter help reduce star bloat in my 80mm refractor?

    Absolutely. An 80mm refractor, particularly an achromatic or doublet design, is a prime example of an optical system that needs strong UV/IR filtering. Without it, unfocused infrared light will create soft, bloated halos around your stars. The Player One UV/IR-Cut filter will produce noticeably tighter, sharper stars across the field.

    Is the Player One UV/IR-Cut filter necessary for imaging Jupiter?

    Yes, it is highly recommended for planetary imaging. Using this filter with a color camera when imaging Jupiter or Saturn ensures that only the focused visible light contributes to the final image. This increases sharpness and contrast, allowing you to resolve finer details in the cloud bands and the Great Red Spot.

    What is the difference between this Player One filter and a standard L-filter?

    Both filters block UV and IR light. However, the Player One UV/IR-Cut Anti-Halo filter includes superior multi-layer coatings designed to eliminate internal reflections between the filter and the camera sensor. This specifically targets and reduces the "halos" that can appear around very bright stars, a common issue with standard L-filters.

    Can I use the Player One 2" Anti-Halo filter for visual observing?

    While it is designed for imaging, it can be used visually. Some observers with highly-corrected apochromatic refractors find it can slightly improve contrast at the eyepiece. However, its primary and most significant benefit is for photographic and digital imaging applications.

    How do I attach this 2" Player One filter to my camera?

    The Player One filter has standard M48x0.75 female threads. It can be threaded directly into a 2" filter wheel, a filter drawer, or the 2" nosepiece of your camera or field flattener.

  • Size 2"
    Threads M48x0.75
  • Player One 2-Year Warranty