You can shoot hdr with any camera that allows fully manual controls, including many point and shoots.
The 7D will function well for hdr type of imagery, but so will dozens of other DSLRs. I own and use a 7D, so this is not a slam on it. Its high speed frame rate is one significant potential advantage for hand held multi exposure shooting. It only allows three frames, not five frames like some Nikons, for multi exposure shooting though. Most hdr work is better captured from a tripod, if possible.
I shoot hdr with my 7D, and my 5DMKii. And my current point and shoot
HDR is less about the camera and more about composition and post processing. Any camera with exposure bracketing will work, like bendruckerphoto noted. You should use a tripod though!
Software like Photomatix can try to align images if you forget a tripod. But it's always important to use one. Aligning shots taken without a tripod is always a toss-up. Sometimes it works well enough, other times you can't get the shot to align.
But beyond that, many of the times that HDR is useful require the use of a tripod (landscapes, cityscapes, etc). If you want to get serious about HDR, invest in a good tripod. Any middle of the road dSLR will do the job fine.
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The 7D will function well for hdr type of imagery, but so will dozens of other DSLRs. I own and use a 7D, so this is not a slam on it. Its high speed frame rate is one significant potential advantage for hand held multi exposure shooting. It only allows three frames, not five frames like some Nikons, for multi exposure shooting though. Most hdr work is better captured from a tripod, if possible.
I shoot hdr with my 7D, and my 5DMKii. And my current point and shoot
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But beyond that, many of the times that HDR is useful require the use of a tripod (landscapes, cityscapes, etc). If you want to get serious about HDR, invest in a good tripod. Any middle of the road dSLR will do the job fine.
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