Given the 24-70 and 70-200 I have now, either a wide-angle or a Sigma 50mm f/1.4. That those three are the same filter size is a convenient perk.
First off, it is a really hard choice to make. But considering the various types of things I do, I might come up with following answer.
17 TS-E (close call between the 17 and 24, choosing the 17 because of the density in switzerland (architectural) and the good usage in landscape work)
50 1.2 (got to have a standard lens, the 1.2 is just better than all the alternatives, even though it's not the best lens ever created. to be fair, there is a lack of good 50's)
70-200 2.8 IS II (i just have to have this one. this lens gets the most use any day. perfect for portraiture, sporting events, speeches etc.)
Exactly the three lenses I already own:In realistic mode, the same (except kenko - canon preferred).
- Canon EF 24-105mm f/4L IS USM
- Canon EF 70-200mm f/4L IS USM (+ Kenko MC4 1,4x DGX)
- Canon EF 100mm f/2.8L IS USM Macro