If you are a professional wedding photographer, forget it. The D90' s HD video capability is very simple, it can only shoot for 5 minutes at a time, and it can't focus automatically. It is shot in MOV format coded by Motion JPEG, and it is troublesome to edit and convert.

If you must use a SLR to take care of camera shooting, you can consider Nikon D7000 (set price is about 9000), which is the most powerful SLR on the market at present. It has 1080P full HD, supports autofocus tracking during shooting, and the format is H264 encoding, making editing more convenient. In addition, Canon 60D and 550D can also be considered. The camera function is good except that it can't catch up with Jiao Wai automatically.

But it's best to use a special camera, even a small DV of two or three thousand is much better than a SLR.