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SVBONY Telescope Filter CLS EOS-C Clip-on Filter Compatible for Canon Broadband City Light Reduction Filter for CCD Cameras DSLR
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About SVBONY Telescope Filter CLS EOS-C Clip-on Filter
By selectively reducing the transmission of wavelengths of light pollutants;specifically those produced by artificial lighting including mercury vapor lamps;both high and low pressure sodium vapor lights and the unwanted natural light caused by neutral oxygen emission in our atmosphere;such as sky glowUsing Method Together with the highly transparent in main nebula emission lines at OIII 496nm and 500nm;H-beta 486nm;NII 654nm and 658nm;H-alpha 656nm as well as SII 672nm;the filter is suitable for enhancing the contrast and getting more details for both visual and photographic purpose at sub-rural areaFeaturesMulti layers anti-reflection coating Non cementing optical substrate coating Ultra-thin filter cell minimize vignetting by maximize possible Aerometal material precise CNC machining sand blasting Process black anodized finish extinction treatment to prevent reflection laser engraving no fading CLS with wider pass-band than UHC and hence is more favored when observing under mild to moderate light pollution Light pollution filter do not eliminate the effects of light pollution or increase the object's brightness;in many cases;they increase the contrast between nebula and night sky;not brightening the nebula Application: the CLS EOS -C is suitable the camera type:EOS 60D;7D mark II, 80D;800D , 77D;70D;760D;750D;700D 650D;600D, 550D;500D, 400D, 100D;1100D;1200D;1300D Warning:this filter is not for EF-S camera lens Notes: the filters of SVBONY are not designed for sun observation;don not look directly into the sun with SVBONY filter;otherwise it will burn the eyes Specifications: Type: city light suppression filter (CLS Filter) Material: optical glass lens;aluminum frame Shape: round Package includes: 1xSVBONY CLS EOS-C clip-on filter 1xsturdy plastic case
