Hello all, new guy here. I was referred to this site by someone on another forum I visit. I was asking for Canon lense advice and he directed me here, to a photography related forum. Already I can see I'm going to have a lot of great stuff to read here. In the meantime, I'll pose the same question that I did on the other forum. I'm looking to make a significant upgrade in my photography gear, and have roughly $1,500 to spend (a bit less if I want to keep my wife happy).
For the past couple years I've been using my first DSLR, a Canon EOS Rebel T3, with the kit 18-55mm lense, and a Giottos carbon fiber tripod. The vast majority of the photography that I do is while on motorcycle touring trips, backpacking, and the occasional family trip. Landscape and landscape+ motorcycle photos are my most common, but I also throw in the odd photo of a cool building, dinner plate, or bird.
For an upgrade I'm considering one of three things; a new camera body (Canon 5D Mark II), or two Canon lenses, the 24-105 F/4L IS or the 70-200 F/4L IS. If I go with the new camera body, I'm not sure my current kit lense would even work since it is a full frame camera, so that option might be out of the question (I can't afford both a body and lense upgrade at the moment). I know that the two lenses will fit on my current T3 body, but I won't get the full use out of a crop body camera. I'm OK with that. I figure that if I'm going to spend money to upgrade a lense, I want to to work for my future camera as well as my current one.
Now down to my thinking on these two lenses. There are many times I'm out on a trip taking photos with my kit lense and wishing for just a bit more reach for my subject. it seems the 24-105 F/4 would fill this role nicely, without breaking the bank like a 24-70 F/2.8 would. It also seems like it would be an ideal lense for a single-lense system, if I only plan on taking one with me for the day or for a trip.
On the other hand, I've read nothing but rave reviews of the 70-200 F/4L IS. My brother, who is an amature large format photographer (and very good at it, he's been "carried" or whatever they call it by a gallery), explained that with the 70-200, I'll be able to take landscape photos and subjects in a way I never even considered before with my kit lense. That sounds pretty cool to me as well.
So without making this post too long, I'd really appreciate any feedback or suggestions. I'm pretty determined that if I chose to buy a lense, it's going to be an "L-series", just because I don't want to have to upgrade down the road. So if you folks were in my shoes, which of the three items (camera body or either lense) would you upgrade first?...or something else entirely?
If it helps, I'll throw up some of the types of photos I'm currently taking with my camera:












