It's probably been 3 or 4 years since I purchased a camera lens (other than some über-cheap toy lenses), but today the mailbox had my latest acquisition inside....... .....a 7artisans 7.5mm fisheye. Up until today, I've used a Nikon F-Sony E adapter for my Siggy 8mm circular fisheye. As you can imagine, it was really heavy, clumsy, bulky and awkward. This little gem isn't much bigger'n than my kit 16-50. I got it primarily for video, although a quick trip into the back yard for some stills after cleaning it up shows a LOT of purple fringing. Only testing it out will tell if it will work for video, which for me is typically 1080p.