Review on Samyang 12mm F2.8 Ultra Wide Fisheye Lens for Nikon DSLR Cameras - Optimized for Full Frame Compatibility by Derek Cage

I bought this based on the reviews. Looks cheaper (obviously it is). Feels good. Captures photos that look like they're attached to an APSF rather than a full-frame camera. As for the aperture ring, I've experimented to get the best possible shots, but I didn't like any of them. Just a fish eye. It won't live on the Ultra Wide designation. I didn't like this lens and will probably return it if Revain's return time allows. You may get better results in bright daylight. Not for an environment where there is not enough light.