^ Yup, but long story short, it's an awesome wide angle for pretty much any camera except the 5d which has too big of a sensor so you can only use it at 16mm, and it's still overly wide..
Nice wide angle with little distortion, very sharp, etc. Recommended by pretty much anyone on here. The canon mount one is kinda hard to get if I remember well it was always backordered, but I got mine on ebay.