As a number of photographers have discovered, some Canon software is not fully compatible with the new MacOS Sierra operating system. Canon is aware of the problems and has published information here: http://www.canon.co.uk/support/consumer_products/operating_system_information/ In brief, EOS Utility 2 will not connect via USB or Wi-Fi. Canon hopes to have updated software available by the end of December 2016. EOS Utility 3 will not connect via USB. Canon hopes to have updated software available by the end of January 2017. Map Utility will not connect via USB. Canon hopes to have updated software available by the end of December 2016.
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