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2 Inch UV / IR Cut Filter

2 Inch UV / IR Cut Filter

Regular price $44.95 Sale

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Increase the range of visible light transmittance and clarity by blocking ultraviolet and infrared wavelengths

Excellent luminance filter for LRGB astrophotography

Unmatched 98% Average Transmission!  Freedom from ghost images (very low reflection multi-coating, Striae-free, and plane-parallel substrate)

Extremely Sharp Cutoff at 680 nm  (leaves all the visible red, including the important 656 nm H-alpha emission line)

Sharp cutoff below 420 nm.  Eliminates violet halos around bright stars (more effectively than simpler so-called Minus Violet photographic filters)

True optical quality glass substrate and coating

Size: 8 x 8 x 5 cm

Material: Optical Filter Glass