What lens do you keep on your camera most of the time?
Haha! That thing would be as big as a bus if they actually made one! I myself keep a Tamron 17-50 f/2.8 on my camera most times. I like it even better than the $1900 Nikon 24-70 f/2.8 due to the size.My handy dandy 12-500mm f/2.8. It's bigger than I am, but it sure is useful!