Optolong Hydrogen Alpha Narrowband (3nm) CCD Filter - 36mm Round Unmounted
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Original manufacturer description below. Improved description/specifications coming soon.
H-Alpha 3nm filter is the popular narrowband filter allowing 3nm bandwidth of light centered on a wavelength of 656nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure vapor lights and unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Better choice of narrowband H-Alpha astrophotographer filter for highest contrast and revealing subtle nebula details.
Features:
- Give you higher contrast and greater detailed viewing
- Decrease background noise and improve the contrast of objects
- Increase the faint nebula signal to make it brighter
Other Information
- Country of Manufacture: China
Original manufacturer description below. Improved description/specifications coming soon.
H-Alpha 3nm filter is the popular narrowband filter allowing 3nm bandwidth of light centered on a wavelength of 656nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure vapor lights and unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Better choice of narrowband H-Alpha astrophotographer filter for highest contrast and revealing subtle nebula details.
Features:
- Give you higher contrast and greater detailed viewing
- Decrease background noise and improve the contrast of objects
- Increase the faint nebula signal to make it brighter
Original manufacturer description below. Improved description/specifications coming soon.
H-Alpha 3nm filter is the popular narrowband filter allowing 3nm bandwidth of light centered on a wavelength of 656nm through, and reducing the transmission of certain wavelengths of light, specifically those produced by artificial light including mercury vapor, and both high and low pressure vapor lights and unwanted natural light caused by neutral oxygen emission in our atmosphere (i.e. skyglow). Better choice of narrowband H-Alpha astrophotographer filter for highest contrast and revealing subtle nebula details.
Features:
- Give you higher contrast and greater detailed viewing
- Decrease background noise and improve the contrast of objects
- Increase the faint nebula signal to make it brighter
Other Information
- Country of Manufacture: China