Behind The Scenes – Digital Photo Pro

Behind The Scenes – Digital Photo Pro |

Schematics of the autofocus system in the Canon EOS 5D Mark II illustrate the complicated internal mechanisms that Live View video must work with. Because Live View mode only works with the AF mirror locked in the up position, phase-detection autofocus isn’t a possibility.

There’s still a lot of mystery surrounding exactly how still cameras capture video. This is, in part, because manufacturers like to hold new technologies close to their chests and, in part, because there are still a variety of challenges that manufacturers have to overcome. This doesn’t suggest that video from a DSLR is subpar, by any means. Visually stunning videos taken by still cameras are created almost daily, and the benefits to photographers of having a video-capable camera have been discussed at length in the pages of Digital Photo Pro and elsewhere. The quality of the high-definition video coming from these cameras has even turned the heads of professional cinematographers, most recently with the season finale of the popular NBC show House M.D. shot on the Canon EOS 5D Mark II.


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