This Canon patent is just one of many recently reported by CanonWatch.
Canon seems to be very active lately in filing patents, from the obscure to the downright vague, as the CanonWatch blog has found. A few weeks ago, we got word Canon filed a patent for a 400mm f/5.6 mirror lens. Just before the year ended, there’s news of another freshly filed patent that would be very useful to photographers. It involves better operation and less battery consumption during wireless communication.