Nice! That's great, gives you a nice range from 17 - 75 now in just two lenses. I hear Tamron is coming out with a new lens, I think it is 70-180 mm.....not sure of what the f/ is, if it is a fixed/constant aperture or if it is a variable aperture. If it is f/2.8, that would complete your trinity!
. I'm also not sure what mounts the new lens will be available in, although I do know that Sony's e-mount is one, and presumably the usual suspects' mounts will also be included.
I've concentrated more on the longer reach end of the scale more than the wider end so far, so that at the moment my widest lens is 35mm. I am not a landscape photographer nor a real estate photographer so don't shoot wide a whole lot; for the time being it hasn't been a priority the way macro and also telephoto reach both were, but at some point I do want to get something a bit wider to expand my possibilities.