Skip to content

Player One UVenus UV-Pass Filter E-series - 1.25"

by Player One
SKU POA-UV125E
CA$209.00 - CA$209.00
CA$209.00
CA$209.00 - CA$209.00
CA$209.00
Price Match Policy!
  • Reveals Cloud Detail on Venus
  • UV-Pass Band Optimized for Planetary Imaging
  • E-Series High-Quality Optical Glass Substrate
  • 1.25" Mounted Filter Format
  • Multi-Layer Coatings for High Contrast
Backordered
Request Stock Alert
Availability Info
Qualifies for FREE Shipping in Canada on orders over $500.
  • Description
  • FAQ
  • Specifications
  • In the Box
  • Downloads
  • Warranty

  • UVenus 1.25″ UV-PASS Filter E-series

    The Player One UVenus 1.25″ UV-PASS Filter is engineered for the specific challenge of imaging Venus, isolating the ultraviolet wavelengths reflected by the planet's dense cloud tops. By rejecting visible and infrared light, this 1.25" filter allows your CMOS or CCD camera to capture the subtle swirls and dark markings within Venus's atmosphere that are otherwise invisible.

    Revealing Venus's Atmosphere: A Dedicated UV-Pass Filter

    To the naked eye or a standard camera, Venus appears as a brilliant but featureless crescent. Its true atmospheric dynamics are hidden in the ultraviolet spectrum, where its sulphuric acid clouds show significant contrast. The UVenus filter is designed to transmit only this UV light, transforming Venus from a flat disc into a world with discernible weather patterns.

    E-Series Construction: High-Contrast Substrate and Coatings

    As part of Player One's E-series, the UVenus filter is built on a high-quality optical glass substrate for maximum image clarity. Multi-layer composite coatings are applied to both surfaces to ensure high transmission of the desired UV wavelengths while suppressing reflections and internal ghosting, which is critical for maintaining contrast against Venus's bright glare.

    Player One E-Series vs. S-Series Filters: What's the Upgrade?

    The E-series represents a significant step up from Player One's S-series filters. The key distinctions lie in the manufacturing standards and materials used.

    • Optical Substrate: The E-series uses a higher grade of optical glass, resulting in a cleaner, more uniform transmission profile.
    • Coating Technology: E-series filters employ a more advanced multi-layer composite coating process, designed to deliver higher contrast and durability.
    • Target Application: While S-series filters are excellent general-purpose tools, E-series filters are optimized for dedicated imagers seeking professional-level results from modern CMOS and CCD cameras.

  • Why do I need a UVenus filter to see clouds on Venus?

    Venus's atmosphere is extremely thick and reflective, making it appear featureless in visible light. However, specific chemical absorbers in the upper cloud deck create dark patterns that are only visible in ultraviolet light. The Player One UVenus filter isolates this specific part of the spectrum, allowing a monochrome camera to capture these elusive atmospheric details.

    Can I use the UVenus 1.25″ filter for anything other than Venus?

    While its primary purpose is imaging Venus, a UV-pass filter can also be used for specialized imaging of Jupiter's and Saturn's upper atmospheric hazes. However, its applications are limited. This is a highly specialized filter and is not suitable for general planetary, lunar, or deep-sky imaging, as it blocks all visible light.

    What makes the Player One E-series UVenus filter different from the S-series?

    The E-series is an upgraded line built to a higher standard. It uses a higher-quality optical glass substrate and more advanced multi-layer coatings compared to the S-series. This results in higher contrast and images better optimized for demanding CMOS and CCD astrophotography.

    Will the UVenus filter work with my monochrome planetary camera on an 8" SCT?

    Yes, absolutely. An 8" SCT paired with a high-speed monochrome camera is an ideal setup for using the UVenus filter. The filter is optimized for modern CMOS/CCD sensors, and the aperture of an 8" telescope gathers enough light in the UV spectrum to allow for the short exposures needed to freeze atmospheric seeing.

    Can I see Venus's clouds visually with the UVenus filter?

    No. The human eye is not sensitive to ultraviolet light. This filter blocks nearly all visible light, so when looking through it, you will see little to nothing. It is strictly an imaging filter designed for use with a camera.

    Do I need an Atmospheric Dispersion Corrector (ADC) when imaging Venus with the UVenus filter?

    It is highly recommended. Atmospheric dispersion is much more severe at ultraviolet wavelengths than in visible light. When Venus is at lower altitudes, an ADC is essential to correct for the color fringing caused by the atmosphere and achieve a sharp image with the UVenus filter.

  • Filter Size 1.25"
    Filter Type UV-Pass
    Series E-Series

  • Player One 2-Year Warranty