The best cameras for wildlife photography need to be fast, with advanced, accurate autofocus, and be capable of great image quality with reliable exposure metering. But there's another aspect of a good wildlife camera that many overlook, but which can make the difference between nailing a great shot, or getting no shot at all: weather sealing.
Chances are the local wildlife won't be running for cover when the heavens open, but you might have to if your camera isn't water-resistant. It could therefore be argued that weather sealing matters more for keen wildlife photographers than even a camera's megapixel count, or indeed most other image quality metrics. Of course, most cameras can be protected by waterproof cases, covers or bags, but these aren't great if you want to preserve the easiest button and control accessibility, and you'll have to waste precious time putting one onto your camera, again risking missing that crucial shot.
