So I'm progressing into a much better photographer, architectural in particular. And the harder I push myself, the more critical I am about my work. I've been closely inspecting some of the photos I took on the last building shoot, and I am finding a good deal of noise in them. The corners and edges are not as crisp as I'd like, and I would like to know how to improve. This shot in particular was shot with my 50D on Av setting, tripod on a 2 second timer, ISO 200, 1/250exp, f/9.5 using my TS-E 24mmL lens, without any tilting or shifting in this particular image. If you look close, you can see how the image is just not as sharp as I feel it could be without me having to apply noise reduction or sharpening in lightroom (3).
Is that attributed to the camera, the lens, the settings, or my process in any way? I strive to keep doing this and would eventually turn it into a gainful second career, so I really want to improve in every way that I can. That being said, the 50D will be around for another year or so, and I would like to upgrade to a full frame, 5D Mk2, and continue shooting with the TS-E 24L and a few other prime lenses.
Thoughts? Comments? Criticisms?