The 50 mm pretty wide open (f/2.0) for generating a nice background blur
Using the 24mm now, captures the bridge nicely, at very low ISO (100) still a little less sharp than the 50mm
Another 24mm shot, this time at very high ISO (1600) to allow stopping down the lens significantly (f/13.0) for very large depth of focus (wanted the bike and the whole bridge in focus here)
Same idea as last photo, wanted a large DOF (shot again with the 24mm)
Action pic with the 24mm
Low-ISO portrait with the 24mm, wanted everything nice and sharp. There was too much fog though to have a decent background.
Well, I was by bike as well. The 50mm in all its wide-open glory!