Over the last 8+ years, I've gone from the original Digital Rebel to 20D, 40D and 7D. I've always dreamed of having a FF body and now have decided to pull the trigger on the 5D Mk III. I've bought and sold lenses over the years and have what I believe is an excellent kit for my needs right now: 10-22, 24-105L, 70-200/2.8L II, 35/1.4L, 50/1.4, 85/1.8
The only lens that won't work with the new 5D (once it gets here, if it ever does), is the 10-22. I love that lens, but I'm now pondering what to replace it with, if anything. The 24mm of the 24-105 on FF will actually be equivalent to the mid-range of the 10-22 on the 7D. If I do decide to buy something to replace the 10-22, my options would be 16-35/2.8L or the 17-40/4L. However, I'm not sure if either is worth the price considering the overlap with the 24-105. I shoot all kinds of material, and don't have a specific niche that I'm looking for, but the wide angle zoom would be used for landscapes, architecture and general walk around lens when I feel the need for the wider side of life (as opposed to the 24-105 which is typically my walk around lens of choice). On the other hand, perhaps I should not buy a new lens, stick with 24mm on the wide end and instead spend some money on an extender (since I won't have the reach I had with the 7D).
I'm just looking for people's thoughts who may have been through similar decision process.