I purchased this lens for use with my Aiptek Action HD GVS 1080P.
Fitment:
Unfortuntely, the adhesive-backed rings were too small of a diameter to fit the bezel around the lens of my camera. I found another way to get this lens to work but, you'll want to make sure to measure the whatever ring, rim or casing your camera has around its lens.
Specifically for the Aiptek Action HD GVS - the outside diameter of the camera's lens bezel and the outside diameter of the narrow part of the lens in the Amazon product picture are almost exactly the same. The trouble is, the magnetic ring has a smaller diameter and doesn't fit the camera bezel. For my camera, I removed the lens bezel, placed the magnetic ring on the bezel's underside and reattached the bezel. For this camera, you may want to try something else (if you can find it anything). I searched high and low, and this was the best thing I could find.
Image Quality:
Once I did get the lens mounted, the image was were great. The Aiptek that I have has a very narrow field of view and this lens definitely opened up the scene.
Justification:
So why three stars? Fitment was an issue and I could have just returned it instead of "making it work" but, they really could have more thoroughly explained what on the camera I needed to measure. The package I received from Adorama didn't include any magnetic rings, but they shipped them to me for free and the customer service was fast. The image quality was great for a small lens.
What to take away from this review? Measure, measure measure.