Snake River Prototyping BlurFix Air with Neutral Density 4 Filter for GoPro HERO3/3+/4 Cameras

BlurFix Air with ND4 Filter The BlurFix Air with ND4 Filter combines a lightweight slip-over filter frame for the GoPro Hero3/3+/4 with a professional grade neutral density 4 (ND4 or ND0.6) filter. The BlurFix Air Filters from Snake River Prototyping are the lightest filters available for the Hero3/3+/4 - each filter weighs only 7.6 g, or 0.27 oz! The BlurFix Air slips over the Hero3/3+/4lens body (no housing) and are intended for ultra-lightweight camera platforms (i.e. quadcopters and other aerial radio control aircraft). Each BlurFix Air is made from two CNC machined Delrin pieces so that the filter frame can be disassembled to facilitate easy cleaning of the filter glass. Delrin, which is more costly than billet aluminum by volume, was selected because of its high quality and excellent machining qualities. The Hero3/3+/4 lens body can vary slightly from camera to camera. To insure a good fit, each BlurFix Air includes an optional o-ring that can be installed in a groove on the inside of the BlurFix Air body. BlurFix Air with ND4 Filter - What's in the Box: BlurFix Air with ND4 Filter Storage case Microfiber cleaning patch Optional o-ring for secure fit