Originally posted by redrockcoulee And Canon markets at least two of their f4 zooms as L glass.
Provided you're only counting the standard zooms, that's right. They also have a couple of f4 wide angle L zooms, a 70-200 f4 L (highly regarded by landscape photographers), and a 70-300 f4-5.6 L and a 100-400 f4-5.6 L as well. Nonetheless, on Canon (and even more so on Nikon) forums, you'll find heated arguments over whether the premium f2.8 zooms are in fact better, at landscape apertures, than the f4 alternatives.