Snake River Prototyping BlurFix Air 3-Pack Filter Bundle for GoPro HERO3/3+/4 Cameras, Includes BlurFix Air with CP Filter, ND4 Filter, ND8/CP Filter

Bought these to mount on my GoPro 3+ Black on my Phantom 2 quadcopter and Zenmus H3-3D Gimbal. The weight is perfect on the Gimbal and no counter weight was needed. Got some minor color banding in direct sunlight at the bottom of the frame on both the ND filters and some minor color vignetting on the lower left bottom corner in certain direct light angles. But over all the shots I'm getting are quality when not in direct sunlight. The ND filters are good at eliminating the banding at the top of the gopro frame when in direct sunlight (light flickering through the blades). Bit pricey but for the kit you get a quality build, lite weight filter with options. Have not tried the CP yet. Sample footage here (if the link is allowed): https://vimeo.com/108974879

These work really well on the GoPro Hero 4 if you mount it on a DJI Phantom 2. They're not very heavy so they don't effect the gimbal operation negatively.

Jello be gone! This is absolutely a great product for you drone flyers out there. I ended up buying the 3 pack so I can use the filters with the open gopro frame.

Thanks