A partial graph from the 'Exposure Plot' program showing wide angle and tele focal lengths used in Alaska.
It demonstrates the FE16-35 f4.0 usage and clearly shows the polarization of 16mm vs. the 35mm end. Its slightly misleading since other lenses overlap at the longer focal lengths.
note: the '40mm' listing is actually 35mm and Exposure Plot rounded up.
...and no surprise...at the long end, where wildlife is shot, focal lengths are severely skewed to the long end of my FE70-300. I wish I had available an even longer lens like the FE100-400 w/ 1.4x
I took well over 1000 shots at 300mm.