Urth Neutral Night Lens Filter (Plus+) The Neutral Night Lens Filter Plus+ from Urth cuts light pollution for truer colours and sharper details when photographing at night. Artificial light pollution creates a warm colour cast when photographing at night. The coated neodymium filter cuts light pollution's warm colour cast to capture truer colours and elevate your astrophotography and night photography. The Plus+ range features 20-layers of nano-coating, which provides easier cleaning and better protection against water, oil and scratches. These layers also provide a higher maximum light transmission and a more consistent transmission curve for sharper images, finer colours and greater depth. Capture sharper details by cutting reflected light and warm artificial light. The design of the ultra-slim rim avoids vignetting and the durable magnalium is guaranteed for life. The filter is double-threaded for stacking filters or using screw-mount lens caps. It cuts the warm glow of light pollution for better details and sharpness when photographing or filming at night. Enjoy professional clarity and colour balance for stunning astrophotography and night photography with a 20-layer nano-coated neodymium glass. The night filter cuts out light pollution's warm hue for truer colours, better white balance and details.