Features:
Light pollution has always been a challenge for photographers who like to photograph cities at night. This unpleasant haze makes capturing stars and celestial objects a lot more challenging.
The new The special coating on the filter helps stop the yellow and orange wavelengths of light from entering the lens resulting in clearer photographs of the night sky. For architectural shots or long exposures in the urban environment even delicate structures and contrasts are maintained in the subject and no longer overexposed. By means of extensive filtering of the warmer wavelengths of light, photographs are effectively ‘cooled down’ retaining the same detail and contrasts that you see with your eyes.
As a result of this cooling effect, we recommend that photographers always use manual white balance and select a colour temperature between 700K and 1,500K of the reading that was taken without the filter inserted, to ensure the colour authenticity of your pictures.

Specification:
Nano Multi-Coated，reduces Light Pollution for Crystal Clear Night Skies
Ultra Slim Optical Glass Filter
Coates on both sides,waterproof, oil resistant, scratch resistant,protacting your cmaera lens
No color cast,No vignetting on wide angle lenses
Frame made of alloy aduminium
Caliber: 49/52/55/58/62/67/72/77/82mm(optional)

Precautions:
Light pollution cut filter does not cut 100% of light coming from Sodium and Mercury-vapor lights.
Polluted light is a mixture of different unwanted light spectrums. Light pollution cut filter cannot cut all the polluted light spectrums.

Package Included:
1*Night filter (optional)

Note:
Please confirm the caliber you need before purchasing, so as not to be inapplicable, thank you! !