Polar Pro 3 Filters For Camera Zenmuse X5 The Polar Pro filters for DJI Inspire 1 are the most up to date filters available, using a high resolution glass & layers for multiple strength & increased accuracy. UV Filter: (6 grams) The UV filter is used for lens protection during flight/crashes when you do not need any aperture/shutter control. This UV filter will also cut haze & make clouds pop a bit more. Multi-Coated UHD glass for pristine optics. CP Filter (Polarizer): (7.75 grams) The CP filter is used for reducing glare off of the ground, water, & sky. This filter is especially important while flying because shooting from an elevated perspective causes the camera to pick up a lot of reflection of the ground. The polarizer helps improve color saturation in bright scenes & alsoimprove contrast. In addition to glare reduction the Polarizer will make the sky a deeper blue & allow clouds to pop. Multi-Coated UHD glass for pristine optics. ND8 Filter (3-stop): (6.06 grams) The ND8 filter reduces 3 f-stops of light. Generally speaking, trying to hold aperture at f 2.8 or f 5.6 the ND8 filter would be used on a cloudy to partly cloudy day to knock shutter down to 1/60th. Multi-Coated UHD glass for pristine optics.