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Description
ALPINE ASTRONOMICAL Green 500nm Bandpass Filter (2")Planetary Viewing Imaging Filter 500nm Wavelength Bandpass 2" Eyepiece Threads 7 Layer Anti Reflection Multi Coated No Reflections, Scatter or Image Dimming Planeoptically Polished Optical Glass 70% Throughput Transmission Blackened Aluminum Frame Stackable with Other Filters 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
- Planetary Viewing/Imaging Filter
- 500nm Wavelength Bandpass
- 2" Eyepiece Threads
- 7-Layer Anti-Reflection Multi-Coated
- No Reflections, Scatter or Image Dimming
- Planeoptically Polished Optical Glass
- 70% Throughput Transmission
- Blackened Aluminum Frame
- Stackable with Other Filters
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
| Size | 2" |
| Filter Factor | Green, 500nm wavelength |
| Multi-Coated | Yes |
| Rotating | No |
| Application | Lunar and planetary viewing and imaging |
| Construction | Glass filter, aluminum frame |
| Front Filter Thread Size | 2" |
| Weight | 2.3 oz / 66.0 g |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy