Johnnie Behiri just confirmed that the Canon T4i seems to be Canon’s first HDSLR camera that has a clean hdmi-out feed! Is it usable? That’s an important question. Initial testing was done with an Atomos Ninja 1 and the footage had some issues. The signal is clean, but further testing has to be done to see if the 650D’s signal is actually usable for external recording. Canon & Atomos have been contacted to make sure they can work out any issues here. We’ve seen a similar situation before when the Nikon D800 & Atomos Ninja combination posed some challenges that have now been resolved. A source of the problem could also be the fact that the camera used was a beta model. What does it mean? Up until this day all Canon HDSLR cameras had overlays within the hdmi signal that could not be removed making an external recording impossible. The signal coming from the beta Canon T4i / 650D tested is clean. In theory having a clean signal means that you can record the video feed to an external device like the Atomos Ninja and get a ready to edit, quality encoded Apple ProRes file. The signal from the beta 650D seems to be routed to the hdmi port before it is being compressed. There are definitely less compression artifacts in the footage recorded on the Ninja than in the h.264 internally compressed files. The Canon Rebel T4i / 650D kit with the 18-55 STM lens is still in stock at B&H. If any of you can do further testing please let us know the details.Read more
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