Neutral density filters reduce the amount of light hitting the camera sensor without altering the color of the scene. They are used in a variety of situations, for example in low shutter speed photography for expressing the motion of moving object through long exposure time or to eliminate the moving object in a scene.
The ideal filter to reduce reflections that are often seen when photographing water, glass and similar reflective surfaces while always maintaining uniform light distribution. Simply by rotating the ring reflections can be reduced. Polarizers also increase color contrast and saturation.
UV filters are the time-honoured filters, they block UV light from entering the lens and therefore reducing blurring, haziness and blue casting. Simultaneously, they are highly useful tools to protect the lens against dust, moisture and can permanently remain on it without affecting the image.
Both UV and Protect filters can permanently remain on camera lens without affecting the colour of the pictures, they are designed with different types of coating layers for guaranteeing different levels of protection and easy daily maintenance.
All Manfrotto filters are water-repellent. Manfrotto Professional and CPL filter have a unique anti-static coating. Manfrotto Advanced CPL and UV, Professional Protect and Cpl and ND filters are also oil-repellent and make the filter easy to clean and maintain.