Alpine Astronomical Baader Green Colored Bandpass Eyepiece Filter (2")

BH #ALFCFG2 • MFR #FCFG-2
Alpine Astronomical
Alpine Astronomical Baader Green Colored Bandpass Eyepiece Filter (2")
Key Features
  • Planetary Viewing/Imaging Filter
  • 500nm Wavelength Bandpass
  • 2" Eyepiece Threads
  • 7-Layer Anti-Reflection Multi-Coated
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Centered on the 500nm wavelength, the Alpine Astronomical Baader Green Colored Bandpass Eyepiece Filter can be used by itself or stacked with other filters to enhance your observations when viewing the moon or planets such as Mars, Jupiter, and Saturn. 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 2" eyepieces and other accessories such as diagonals and Barlows.
In Stock
$79.00
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Alpine Astronomical FCFG-2 Overview

Centered on the 500nm wavelength, the Alpine Astronomical Baader Green Colored Bandpass Eyepiece Filter can be used by itself or stacked with other filters to enhance your observations when viewing the moon or planets such as Mars, Jupiter, and Saturn. 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 2" eyepieces and other accessories such as diagonals and Barlows.

Use

  • Provides the sharpest images with achromatic refractors
  • Improves the visibility of CO2 hoarfrost and ground fog on Mars
  • Increases contrast between red and blue regions on Jupiter and Saturn
  • Provides the best contrast for lunar craters Tyco, Copernicus, and Kepler
  • 70% average transmission bandpass throughput

Alpine Astronomical FCFG-2 Specs

Size2"
Filter FactorGreen, 500nm wavelength
Multi-CoatedYes
RotatingNo
ApplicationLunar and planetary viewing and imaging
ConstructionGlass filter, aluminum frame
Front Filter Thread Size 2"
Weight2.3 oz / 66.0 g
Packaging Info
Package Weight0.15 lb
Box Dimensions (LxWxH)3.15 x 3.05 x 0.95"
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