14-24mm would be nice, been pondering getting a wider fast prime to use on my crop, been considering the f1.8 28mm and I'm a tad reluctant to look at the 10-22mm EF-S due to the speed, or the 17-55m EF-S lens because of the mixed reviews and comments on build quality... Price ? Hopefully less than the 16-35mm, circa £700-800 maybe ?