Very easy to use. Extremely sharp! I would buy this lens again.

I brought the version II with NX mount. I was not sure between this lens or the Samsung NX 10mm fisheye lens. The NX lens has all the "extras" that would make it great (electronic extras like auto focus and exposition, and the feature button etc).

This lens is amazing value for money. The results are sharp and the distortion not too extreme. I had previously tried the Vivitar equivalent and had been very disappointed, but this lens is in the same league as Canon's own. Not being auto focus isn't and issue as the depth of field is enormous.

My first copy of this lens was stolen, so I bought another s/h from Wex. It's a fun item, small and light enough to keep in the bag for any occasion, but seriously sharp. The clip-on lens cap is much better than the Canon version.

Lightweight; Sharp Focus