Video codec type and capture bitrate w. K-01, K-5 Mark II

Started Nov 6, 2012 | Discussions thread
DrewE
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M-JPEG
In reply to Francis Carver, Nov 7, 2012

M-JPEG is pretty much just a series of JPEG images strung together to form a video.  As such, it is an intraframe codec (only I frames), but is not necessarily a constant bit rate codec.  It's rather inefficient in its use of storage—you need a higher bit rate for the same quality than for more advanced codecs.  The main advantage it has is that it's not all that computationally intensive to encode or decode, which is presumably why Pentax chose it for the K-5 (and K-5ii and K-5iis); they apparently don't have a super powerful processor to work with.

As Gordon alluded to, Pentax DSLRs are best thought of as superb still cameras with bonus video capability thrown in, as opposed to superb video cameras that can also take good photographs.

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--DrewE

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