http://www.nikonchat.com/nikon-d90-remote-flash/

What a Nikon D90? D5000 O?
Hello everyone, I'm looking to improve my Nikon D70, and the two that I like in my price range are the D5000 and the D90. The thing is, can not detect a difference between the two, however, the D90 is about $ 200-350 more expensive. Specifications on the same image, screen of similar size, both have movable screens, both take high definition video, etc. The only real differences that can detect are: "The D90 feels more robust in their hands while the D5000 feels too light, the D90 can handle more complex flash-D5000 Remote Control does not allow as much customization to exposure None these presets are so important to me, so I'm leaning towards the D5000, but there's something else I'm missing? What is the difference, though? What is different about semi-professional cameras and entry-level? Better picture quality? More features? Better security?
If I only had one thing it reminds me is the auto focus motor. The D90 has one, and all the bodies before doing so. All bodies beneath it, like the D40 / x d60, 3000, 5000 not have an auto focus motor. If the photo becomes a serious hobby you will soon discover that not all Nikon lenses have motors. So if you have the 5000, and to go buy a nice 50mm f/1.8 the beautiful home in low light / night shots, and large blurred backgrounds, you will discover that it becomes a target manual on that body. You can still use it, but I promise you that the camera can autofocus faster and more accurately than they can. The D90 is also a higher end body, and with it comes more options and flexibility that come to mind, since you probably just looking at megapixels live view so that more flexibility will be increasingly important to you when your skill level is much higher. In my opinion, the D90 is not quite a body semi-pro, the D300 and D300s are and are used in large amounts of professional work. The D90 is, however, some entry-level model. So it comes down to the future and what you plan to do. If all this is personal use, not intended to pay, and you plan to buy a dSLR, slapping it in "AUTO mode and doing his thing, go with the model entry level, will be adequate for most needs. If you used your D70 in a more serious, and really made use of all features, and considered it was not enough, and the camera actually withheld for your type of photography then go up the chain to the highest instance you can pay without doing anything financially irresponsible.
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