Movie makers thrive on quick autofocusing for their action shots, so they'll be glad to hear that Canon will offer an upgrade to the EOS C100 video camera with that kind of performance in mind. The $500 transplant will give the C100 continuous autofocusing using a variant of the extra-fast Dual Pixel CMOS AF technology found in the EOS 70D. Owners will also get AF lock controls, focus presets and much speedier center-only focusing. Don't rush to plan your next big video project around the upgrade, though. Canon doesn't start upgrading the C100 until February, and you'll have to send your $8,000 camera to a service center for the (comparatively cheap) overhaul.