The Canon 16-35mm f2.8 II is my go to lens for landscape work. Coupled with the Canon 1Ds Mark II it gives a broad perspective that is very pleasing. Like all of Canon’s L series lenses the quality of the optics and build is amazing. I have experimented using this lens on the 7D to take some amazing bird shots that give a real sense of place. It is only suitable for this type of work if you can get very close to the subject.