Since I sold the T2i with the 18-55 and Tamron 70-300, I have a gap in my focal length range and believe the 24-105 could fill it (it helps that I have a little cash put aside).
I would of course like the 70-200 f2.8 IS, but at the moment I can't warent that sort of cost (I know I could go non IS or f4, but I'll probably regret not getting the "best")
Maybe later in the year I could add a smaller L zoom and then sell on the Sigma, but for the time being I think I will have it covered.
I've had a look back through a lot of my photos and I don't appear to go wide that often or wide open. If I need to do a wide landscape I could resort to the Sigma, or even the Wallimex. At the other end, I do have a lot of shots at 70mm, and again at 100mm (and an awfull lot at 400mm)
Subjects are mostly wooland bird and waterfoul (weekend walks around the local reserve) - hence the 100-400, motorsport and the occasional landscape. I think the 24-105 is the right choice for me at the moment. (Flickr here
for those interested in my "snaps")
I don't walk far, so carrying extra kit short distances is not really a big issue (that's why I drive a 4x4
), although I might have to think about what lenses I take on a trip (or buy a bigger backpack).
I also believe the 24-105 will work ok with macro extension rings, well at least moreso than the Sigma.
Current:
Wallimex 8mm fisheye
Sigma 17-70 f2.8-4
Canon 100-400 L
Next
Canon 24-105 L f4.0
Future
maybe a wide angle Canon zoom
maybe a Canon 70-200 f2.8 IS
Sorry for rambling on, but having now written the above, I think I'll go and buy one this weekend.
Feel free to confirm my reasoning, or throw a spanner in the works if you really have to.
Lawrence
Also whjy a wide angle L zoom? You mean like a 17-40L? On aps-c? why? I actually got rid of mine after trying a tamron 17-50 2.8. It seems like a weird ramble, more about how to manage to make everything into an L than anything else.

