http://www.nikonchat.com/macro-nikon-d90/

Should I buy the Nikon D90 or Canon Rebel T1i?
I've been in photography for a couple of years. using a Nikon S610, then a Nikon P6000, and I'm looking to upgrade to a DSLR. I have also used a canon eos rebel s (film). what is more important to me in a camera are low noise at high ISO settings, depth of field control, and good quality image. i would shoot a lot of macro and close-ups, self-portraits and landscapes. that in his opinion, would be a better camera for me?
Sounds good to you, unlike so many who read here at least have an idea of what you are talking to the picture … that's good. I have and I always recommend Canon. I am the owner of XS (1000D) and find it gives me the results I want. DOF will control any controllable lens. This for example I shot with a 18-200 lens in the bright sun at close range by simply turning the focusing ring until I got to the point that I wanted. However http://www.flickr.com/photos/jimsphotostuff/3427701780/sizes/l/in/photostream/ understand that with a digital SLR camera that we need a macro lens specific to the work on which he wrote about. Unlike so-called "bridge" cameras lenses for digital SLR cameras not have a macro that simply press a button to use. I have a Fuji 9000 has that feature. If I'm doing macro that is the camera I use instead of my Canon because I have a macro lens for it. I find that even with a dSLR camera you'll often get noise at 800 ISO or higher. I think that is the nature of the beast. Some have noise suppression you can use. My camera has only noise I get 800 and up. If you have used 800 to loop picture to remember it was the same there. The aim of the kit you'll get with the canon, I know I have one, is a good lens. Not great but very good. It's fast, strong and accurate. I am currently using a 28-200 that gives me more range and is also very fast, strong and accurate. Also I have a Canon 75-300 lens is pretty good, especially considering the price of $ 150. My conclusion is that to me, their colors Nikon pushes too hard. Canon does not. There are options to increase the absorption of color, but I'd like to see what is really was there, not someone else's idea of what should have been there. If you want more color I usually edit in software. I'm sure he would be satisfied with either the camera. Also, since you have SLR (film) experience of the learning curve is not as great for you, but there is much to learn. Good luck in your decision and have fun.
NIKON D90 Movie – macro