3PCS ND filter Lens kit for DJI Mavic Pro Drone Quadcopter 

Package Included :
ND4 Filter Lens
ND8 Filter Lens 
ND16 Filter Lens 

WHY USE A NEUTRAL DENSITY FILTER?

What does a neutral density filter do? These filters reduce the amount of light passing through the camera lens without changing the color of the scene.  They are especially useful in bright light conditions to help prevent overexposure.  Neutral Density filters also allow proper exposure at a wider lens opening for reduced depth-of-field to highlight a key subject by making the foreground and/or background out of focus. ND’s are must have filters especially are thinking of doing more landscape and nature photography, digital photographers, this neutral density filter guide will help you determine the best neutral density filter for your situation. ND filters are one of the essential digital camera filters.

• Solid Neutral Density
• IR Neutral Density
• Graduated Neutral Density
• Attenuator/Blender

For example, one might wish to photograph a waterfall at a slow shutter speed to create a deliberate motion-blur effect. The photographer might determine that to obtain the desired effect, a shutter speed of ten seconds was needed. On a very bright day, there might be so much light that even at minimal film speed and a minimal aperture, the ten-second shutter speed would let in too much light, and the photo would be overexposed. In this situation, applying an appropriate neutral-density filter is the equivalent of stopping down one or more additional stops, allowing the slower shutter speed and the desired motion-blur effect.