I've been using a Sigma 17-70mm on mine so far and it's worked pretty well for skiing. I know there's better lenses out there, but I wanted wide angle and under $400 so this was what I ended up with. But yeah, I've been really happy with how it shoots skiing and landscapes, but haven't taken it biking yet--I'm afraid of falling and breaking things other than my body.
Search for answers, on the perennial quest
Where dreams are followed, and time is a test
METALHEADS BW ~on3p.~