The Star Guy CLS CCD 2" Filter is designed for use with DSLR cameras in light polluted areas. This filter deepens the contrast between deep sky objects and the encircling night sky. With a wider transmission curve than UHC filters, more light can pass through the filter. Stars are brighter. Key light pollutions wavelengths are reduce for less scatter and improved contrast. Use this filter for DSLR cameras, CCD and film photography and visual observation. The Star Guy CLS CCD filter makes viewing of double stars easier in light polluted areas. These filters feature precision double sided polishing and coating.
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