Alpine Astronomical Baader Yellow Colored Bandpass Eyepiece Filter (1.25")

Alpine Astronomical Baader Yellow Colored Bandpass Eyepiece Filter (1.25")

Alpine Astronomical Baader Yellow Colored Bandpass Eyepiece Filter (1.25")

B&H # ALFCFY1 MFR # FCFY-1
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Expected availability: 7-14 business days

Product Highlights

  • Planetary Viewing/Imaging Filter
  • 495nm Wavelength Bandpass
  • 1.25" Eyepiece Threads
  • 7-Layer Anti-Reflection Multi-Coated
  • No Reflections, Scatter or Image Dimming
  • Planeoptically Polished Optical Glass
  • 98% Throughput Transmission
  • Blackened Aluminum Frame
  • Stackable with Other Filters
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Color: Yellow, 495nm

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Alpine Astronomical Baader Yellow Colored Bandpass Eyepiece Filter (1.25

Size: 1.25"

1.25" 2"

Special Order

$0.00 Tax Collected Outside NY and NJ

You Pay: $41.00

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Alpine Astronomical FCFY-1 overview

  • 1Description

Centered on the 495nm wavelength, the Alpine Astronomical Baader Yellow Colored Bandpass Eyepiece Filter can be used by itself or stacked with other filters to enhance your observations when viewing or imaging Jupiter or Mars. The optical glass filter is planeoptically polished and treated with seven-layer Phantom Group anti-reflection multi-coatings to improve contrast and clarity while eliminating reflections, scattering, or image dimming. Holding the filter is an black anodized aluminum frame made to fit standard 1.25" eyepieces and other accessories such as diagonals and Barlows.

Use
  • Suppresses the secondary blue spectrum when using achromatic and half-apochromatic refractors, increasing image sharpness
  • For visual and photographic planetary observations
  • Enhances contrast between the belts on Jupiter
  • Increases contrast of the lunar and Martian surface
  • 98% average transmission bandpass throughput
In the Box
Alpine Astronomical Baader Yellow Colored Bandpass Eyepiece Filter (1.25")
  • Plastic Case
  • Limited 2-Year Warranty
  • Table of Contents
    • 1Description

    Alpine Astronomical FCFY-1 specs

    Size 1.25"
    Filter Factor Yellow, 495nm wavelength
    Multi-Coated Yes
    Rotating No
    Application Lunar and planetary viewing and imaging
    Construction Glass filter, aluminum frame
    Front Filter Thread Size 1.25"
    Weight 2.1 oz / 59.0 g

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