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Brand OPTOLONG Broadband CLS EOS-FF Clip-on Filter for CCD Astrophotography
OPTOLONG Broadband CLS City Light Suppression EOS-FF Clip-on Filter for CCD Astrophotography Description
This CLS filter is made for photography of deep sky targets in urban environments. The filter works by blocking the wavelengths or mercury and sodium-vapour used in urban lighting while letting the visible and the critical OIII, H-Alpha and H-Beta bands through, allowing great versatility in terms of potential objects to image. Use it in traditional photography to create and experiment.
- Blocks wavelengths of mercury and sodium vapour artificial lighting, vastly reducing light pollution and skyglow: you can image from within cities
- Let critical OIII, H-Alpha and H-Beta bands through for imaging deepsky objects
- Contrast significantly improved, possible exposure times greatly extended
- Inexpensive entry into the world of Deepsky Astro imaging
- Quality aluminum construction
- Multicoated on all surfaces
- Light pollution reduction and contrast boosting deep sky filter for Galaxies, nebulas and clusters
- 95% transmission of main nebula emission lines: H-beta 486.1nm, OIII 495.9nm and 500.7nm, H-alpha 656.3nm, and SII 672nm.
- 0.1% transmission of major transmission lines of artificial light pollution: Hg (Mercury) at 435.8nm, 546.1nm, 577nm, and 578.1nm. Na (Sodium) at 598nm, 589.6nm, 615.4nm, and 616.1nm.
- The CLS EOS -FF Filter is suitable the Camera Type: Canon 5D2/5D3/6D
- OPTOLONG CLS EOS-FF Filter
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On May-07-18 at 06:37:07 PDT, seller added the following information:
Filed under: Eyepieces & Accessories