Feature

●Filter effectively cuts light pollution (light pollution) from artificial light sources such as sodium or mercury lights
●Can be attached to lens caps, filters, etc
●Mainly efficiently cuts light from 570 nm to 600 nm, making it ideal for starry and night scene photography
●Product Name: Light Pollution Reduction Filter 4.4 inches (112 mm) (Model Number: K14013)
●Filter frame diameter: 4.4 inches (112 mm)
●External Dimensions: φ 4.5 inches (116 mm), Frame Thickness: 0.1 inch (3 mm), Glass Plate Thickness: 0.04 inch (1.1 mm), Weight: Approx. 1.6 oz (43 g)
●Filter Effect: Reduces light pollution, reduces light pollution


Description

LPRF (Light Pollution Reduction Filter) 1.6 inches (40.5 mm)

Light pollution reduction filter that reduces the effects of city lights, sodium lamps, mercury lights, and reduces color cubing.
Effectively cuts light from around 570 nm to 600 nm, and reproduces the original color of the subject when shooting at night scenes or starry skies.
The LPRF round series has been made to meet the demands of astronomical photographer Takao Nakanishi.
Made with high quality SCHOTT (Shot) B270 glass. The visible light transmittance is very high, and the ultra-precision polishing ensures high plane accuracy on both sides.