I just bought a tokina 11-16 and have paired it with my 70-200 on my 7d, when I bought the tokina I had a lengthy conversation with the guy who sold it to me and he said a 50mm 1.4 would be a great lens to fill the gap between 16 and 70 mm ill mainly be doing landscapes, mountain biking and work for my school yearbook, I was thinking of this lens or the 24-105 but I can't decide, can someone make any suggestions?

