Astronomik CLS Light Pollution Filter - SCT Rear Cell

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Astronomik CLS Light Pollution Filter - SCT Rear Cell
$159.95
Item # AK-CLS-SCT
1 Questions(s)

Waiting List

  • The Astronomik CLS Light Pollution Filter is presented in an SCT Rear Cell format allowing you to swap eyepieces and imaging equipment without having to remove your filter.
  • Blocks the light of the spectral lines of mercury and sodium-vapor lamps and lets the largest part of the visible light and H-alpha emissions pass.
  • The Astronomik CLS Light Pollution Filter are optimized for use with telescopes with a telescope to filter ration of 1:3 to 1:15.
  • All the important emission lines, as well as the spectral region that the very well dark adapted eye can see, can pass through the filter.
Description

Details

Astronomik CLS Light Pollution Filter - SCT Rear Cell

The Astronomik CLS is a light pollution reduction filter for visual observation, black & white and color imaging of nebulae, galaxies and star clusters.

The Astronomik CLS blocks the light of the spectral lines of mercury and sodium-vapor lamps and lets the largest part of the visible light and H-alpha emissions pass effectively minimizing the orange glow created by urban lighting. All the important emission lines, as well as the spectral region that the very well dark adapted eye can see, can pass through the filter.

The filters are optimized for use with aperture ratios from 1:3 to 1:15 which in the case of the SCT sized filter will be SCT's between 5 and 30 inches.

The Astronomik Visual CLS Light Pollution Filter is good for use under both dark and urban skies for reducing light pollution made by mercury-vapor lamps. For film photography and modified DLSR use, the CLS filter gives good performance and near perfect color balance. While this filter does perform well with webcam and video equipment under light polluted skies, it is not suitable for planetary use.

Astronomik CLS Light Pollution Filter - SCT Rear Cell Features.

  • 92% transmission at 486nm (H-beta)
  • 92% transmission at 496nm (OIII)
  • 92% transmission at 501nm (OIII)
  • 97% transmission at 656nm (H alpha)
  • Pass from 450 to 540nm and beyond 650nm
  • Parfocal with other Astronomik filters
  • Glass thickness: 1mm
  • Completely resistant against high humidity, scratches and aging effects
  • Diffraction limited, the filter will not reduce the optical performance of your telescope!
  • Astronomik filters are delivered in a high-quality, long lasting, filter box
Additional Information

Additional Information

SKU AK-CLS-SCT
Manufacturer Astronomik
Type of Filter Light Pollution Reduction
Filter Usage Imaging, Visual
Single or Set? Single Filter
Filter Size SCT Standard
Filter Shape Round
Filter Mounted? Mounted
Warranty 10 Year Warranty
Peak Transmission 97% at H-alpha
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Included Items

Included Items

  • Astronomik CLS Light Pollution Filter - SCT Rear Cell Threads
  • Plastic Storage Case
Questions & Answers

Product Questions

Does the filter fit the Meade SCT rear cell?
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