Alpine Astronomical Baader UV/IR Cut / Luminance Filter (31mm Round, Unmounted)

Alpine Astronomical Baader UV/IR Cut / Luminance Filter (31mm Round, Unmounted)

Alpine Astronomical Baader UV/IR Cut / Luminance Filter (31mm Round, Unmounted)

B&H # ALFUVIRRD31 MFR # FUVIR-RD31
Alpine Astronomical Baader UV/IR Cut / Luminance Filter (31mm Round, Unmounted)

Alpine Astronomical Baader UV/IR Cut / Luminance Filter (31mm Round, Unmounted)

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Expected availability: 7-14 business days

Product Highlights

  • Ideal for Astrophotography and Imaging
  • 420-680nm Wavelength Transmission Range
  • Allows Entire Visual Spectrum to Pass
  • Blocks Ultraviolet and Infrared Light
  • 7-Layer Scratch-Resistant Multi-Coatings
  • Precision Planeoptically Polished
  • Helps to Prevent Ghosting in Images
  • Useful as a Solar Pre-Filter
  • Unmounted for Versatile Usage
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  • 1Description

A must-have for photographing and imaging the night sky, the Alpine Astronomical Baader UV/IR Cut / Luminance Filter blocks ultraviolet light below 400nm and infrared above 680nm to allow only the visual spectrum between to pass through. Using this filter during imaging sessions, especially when stacked with other colored filters with monochrome cameras, allows you to capture very specific wavelengths without ghosting—notably in the high red and low violet regions. When used as a pre-filter for solar viewing/imaging, it helps to reject much of the harmful heat energy before the primary solar filter, preventing damage and the potential for failure during prolonged use.

Helping to boost transmission to over 98% across the visible spectrum are seven-layer scratch-resistant multi-coatings and planeoptically polished surfaces, which work together for maximum throughput and uniform edge-to-edge transmission. This version of the UV/IR filter is offered here as an unmounted 31mm round option for custom applications and imaging systems.

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Alpine Astronomical Baader UV/IR Cut / Luminance Filter (31mm Round, Unmounted)
  • Limited 2-Year Warranty
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    • 1Description
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