Canon 5D Mk II
This camera is legendary. It is the camera more responsible for introducing video capabilities to DSLR and mirrorless cameras. Besides the video capabilities of this camera, it is the photographic power of this beast that still makes this a great camera to own. I still have mine and I am unlikely to get rid of it. When anyone asks me what camera is best to learn photography on I still refer them to this model. It is a full-frame camera which supports a vast selection of EF lenses which are arguably the best lenses of any other camera manufacturer. I still use this camera as a backup body and from time to time I load it up with the Magic Lantern software to expand its capabilities. For a full review and specification of this camera make sure you check out the excellent review at KEN ROCKWELL.