Thats built for crop bodies. It is basically the crop worlds 24-105. It seems to be a stellar lens if you want a do all. I have no experience with it though.
It's ok. I had it for a short while a looong time ago. The downside is the CA, particularly at the 17mm end. The cam-extension system also gets loose easily with normal use.



I bet they bring it back at that point.
