After this last camping/hiking trip I have had in-depth discussions with myself about which lens(es) to carry next time. I'm not a young buck anymore and the weight and $$$ of my pro zoom glass is more than I want to haul on the trail. So I was said to myself "just take the primes dummy". I already have the 35/50/85/300mm primes, but was thinking a wide angle sure would be nice. As far as I can see, that leaves me with the choices of 20mm f/2.8 (94° Angle of View) or the 24mm f/2.8 (84° Angle of View). The reviews are promising so far. Has anyone had practical experience with either of these lenses? Will the 10° Angle of View difference be significant in landscape shots or even if in walkaround mode in the city? Thanks for your help.