I got the 16-35mm and I was trying it out. I really like this lens!
My sister's baby turned one last week and all the balloons were deflated, almost. I was taking some pictures of her kid and mine. Please CC let me know what you think.
I have my speedlight on the whole time and bouncing it on the ceiling.
Settings for both pictures:
Exposure: 0.008 sec (1/125)
Focal Length: 28 mm
ISO Speed: 400