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Mike Seymour: Bit Depth Fetishist Mike Seymour of fxguide and fxphd loves his Canon 7D, but on the splendid Red Centre podcast he bemoans one shortcoming of its video mode more than all others combined: 8-bit files. Line-skipping, heavy compression, weird form factor? Mike’s not concerned about that nearly as much as he is the noise, banding, and crunchy chunky nastiness that he knows is lurking within those apparently lovely images, just waiting to pop out and bite him when he’s keying a sky or brightening a face. Why Mike should relax: It’s just not that bad. It’s the compression more than the 8-bit recording that makes HDSLR video fall apart under stress. Get a good noise removal plug-in and watch your bit-depth magically appear to increase. And not every shot needs to be keyed. More professional photographers than will ever admit it shoot JPEG instead of raw. 8 bits is plenty if they’re the right eight bits.
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