Polarizer Filter for GoPro HERO4 / HERO3/3+ - Polarizing Accessory Surf Ski Snow

I suppose it works. It's very expensive for just a tiny piece of film. Lost it in two days. I should have received 200 for this price.

Filter is a flimsy warped piece of plastic that is rather easy to loose. I bought it to try to make the camera lengthen the exposure, so I get a blurred propeller disk instead of strange curved sables of the propeller in the aircraft. It worked some. Biggest complaint is handling and not loosing the filter

Great simple way to make great shots, but it is hard to position outdoors. Just need more practice, so that I don't put finger prints on lense.

The filter I received looked like it might have been damaged. There was some kind of irregular milky haze on one surface, and the alignment tab was kinked, so that when folded as per instructions, it broke off. The filter was curved like a potato chip which combined with the broken tab made it nearly impossible to place accurately in the camera housing. The curvature appeared random, and not designed to orient the filter with the camera lens or housing in any way. I tried to remove the haze by gently washing it with dishwashing detergent, no improvement.Image quality? Imagine placing a big greasy thumbprint on your sunglasses and then holding them in front of the lens while you snap a pic. Come to think of it, I've got a broken set of polarized clip-on sunglasses which I can use to make a far better filter!There is one plus! The filter is so light and flimsy that it's taking up barely any space in the waste basket.

Kinda a waste of money hard to get in case flat and once you take the camera out to put in battery in falls out lost in 3 hours, save your money but a better filter.

Easy to use. Works well in the existing case without adding weight. Great under water. Would definitely buy another one

I thought it was more functional ! It is a little difficult to place in on Gopro and it doesn't function like the one I use on my DSLR

See the little piece of plastic film at the bottom of the very last product picture? That's what you get for $9.95: a cheap piece of film that you lose immediately. Not a polarizer that fits over the waterproof housing as is implied by the first picture. Sending back without even opening the dime-bag it comes in.