?The Circular Neutral Density ND4 Filter for DJI Phantom 3 Pro / Adv helps to reduce the amount of light coming into the sensor£¬ allowing more control over camera¡¯s aperture£¬ exposure time£¬ and sensor sensitivity settings. Plus£¬ it increases color saturation and helps to avoid overexposed photos. With all these great features£¬ it is a must-have optical filter for aerial photographers. ND4 filter allows 1/4 of the incoming light to pass through£¬ which is equal to a 2-stop filter strength.                                    Features             Help to reduce the amount of light coming into the sensor<br> Allow more control over camera¡¯s aperture£¬ exposure time£¬ and sensor sensitivity settings<br> Increase color saturation and help to avoid overexposed photos<br> The ND4 filter allows 1/4 of the incoming light to pass through£¬ which is equal to a 2-stop filter strength<br> Perfectly fit the camera on DJI Phantom 3 Pro / Adv <br>                                                            Specifications             Compatible with     DJI Phantom 3 Pro / Adv    <br> Color     Black    <br> Dimensions     (1.97 x 1.97 x 0.79)" / (5 x 5 x 2)cm (L x W x H)    <br> Weight     1.06oz / 30g       <br>                                                             Package Includes            1 x ND4 Filter<br>