myocyte said:
I was in a similar position, and I've rented both the 17 mm and 24 mm TS-E lenses.
If you're not sure which to get, then this is the right answer: rent both.
I love the 24. Whenever I can think of an excuse to use it instead of some other lens, I do. And it takes the 1.4x TC just brilliantly, giving you an awesome 35(ish) lens as well.
I'm personally not drawn to the 17mm perspective anywhere near as much as I am to the 24mm perspective. And when I
do want something as staggeringly wide as the 17 would give, I'm generally not going to be satisfied with a mere 17mm lens and I'm instead reaching for the 8-15. But that's just me.
Oh, it, of course, depends a great deal which format you're shooting with. I shoot 135 ("full frame") exclusively. If I shot APS-C ("crop"), I'd be all over the 17 instead of the 24.
Also worth considering is the third-party alternatives. I don't really remember who's selling what, but I do know that somebody's got something new for a fair bit less that still has the independent movements of the Version II lenses. I also understand that the image quality from said lens is supposed to be quite respectable, even if it's not quite as good as the Canon. In other words, it's probably a much better price
erformance ratio still with very good performance.
Cheers,
b&