Both the A7s and 5D are a combination of photography and video cameras, but Sony definitively launched the A7s to appeal more to video while the 5D is still largely a photographer's camera. So in one sense it’s a bit unfair to go with this comparison because the 5D Mark III is a phenomenal still camera and is definitely the camera I’ll take for my wedding photography jobs, that said, there are quite a few videographers using the 5D Mark III for video, including me and so this comparison is for us.

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