check this link http://snapsort.com/compare/Canon_EOS_550D-vs-Nikon_D90
read advantages of Nikon D90 and see line no 3. and then let me know what they mean by this picture quality.?
To reply or not to reply, that is the question...
Let me say this. My day job is a supervisor in a photography department where we have 45-60 Nikon D90 cameras in operation in a given day. I was lucky enough to be the predominant influence as to how these cameras are configured for getting the best, out-of-the-box image quality possible. That being said, we haven't needed to change that configuration after a few years of deployment.
Now guess what? I'd rather drop kick the camera into oblivion after chopping it up with a hatchet, feeding it to a wood chipper, and then milling it into a fine powder. I cannot stand the functionality, performance, or image quality from the camera.
As a full disclosure, I own a Canon 20D, 30D, and 7D with the Tokina 11-16, Canon 17-55 F/2.8 IS, Canon 70-200 F/4 non-IS. There are 2 features I wish I had from the Nikon firmware that have significant use and no equal on the aforementioned Canon cameras. However, to each their own and use the best tool for the job.
I've shot a few misc assignments on RAW with the D90 and I have less latitude than my 30D. The performance of the D90 is crippled when the battery percentage is at 60% or below which causes additional shutter lag when taking a photo. Despite being in Manual, you have to wait for the metering timeout in order to change the exposure after a half-shutter press, which is an asinine limitation as well. Furthermore, shutter speeds are supposed to be 'intuitive' where one goes from 2 seconds, 1.6", 1.3", 1". But when you change to fractional seconds the '1.3', '1.6', '2', and then '2.5' don't make sense to the average person whereas 0.8", 0. 6", 0.5", and 0.4" do make logical sense. Oh, and the body like to over expose by 1/3 of a stop under normal circumstance and 2/3rds if you have active d-lighting on at normal or higher. The latter of which we've compensated for, btw.
All of that said, I'll mirror the same sentiments that the others have mentioned previously:
- buy glass
- learn to take good pictures
- the body doesn't matter that much.
I hate the D90, but it works for what we do and it's sufficient for the average Joe.