Rumor: Canon 5D Mark III to feature new MPEG variant 422 XF codec at 50Mbit

Canon are rumored to be working on a new codec for the 5D Mark III based on the MPEG format. It is the DSLR version of the codec used in the XF305.

It will feature a 4-2-2 colour space and a variable bit rate, up to 50mbit. The move is necessary to avoid paying AVCHD / H.264 licensing fees to Panasonic and Sony.

Read moreRumor: Canon 5D Mark III to feature new MPEG variant 422 XF codec at 50Mbit

Mini resolution test – Hacked Panasonic GH1 versus AF100 in 1080p

Image above is softened by my content management system’s JPEG compression. View the full 1080p GH1 frame (44mbit AVCHD) and Crew.tv’s Panasonic AF100 frame (100Mbit AVC-Intra) here

Do DSLRs really lack resolution compared to professional cameras? In the technical sense, yes. But in practical terms, not really.

Read moreMini resolution test – Hacked Panasonic GH1 versus AF100 in 1080p

24Mbit AVCHD versus 100Mbit AVCHD-Intra on the Panasonic AF100 by Crews.tv

Crews.tv have offered up full resolution frame grabs of the unfinished AF100’s compressed 24Mbit AVCHD codec against 100Mbit AVC-Intra (the latter via the camera’s HD-SDI output). With Philip Bloom generating some excitement over the over-cranked 60p capability along with what I expect will be some knock out footage shot in London anticipation over the camera is high and it’s not even finished yet!

Read more24Mbit AVCHD versus 100Mbit AVCHD-Intra on the Panasonic AF100 by Crews.tv

The Panasonic GH2’s own ‘mud-gate’

Above – GH2 circuitry and sensor unit, whole camera exploded view, Photokina Cologne, Germany.

Discuss this and more on our new GH2 forum

When the GH1 was released in 2009, for nearly a year we had a camera with a very poor codec until the hack situation turned this around. Footage would turn to mud on fast motion or whip pans, sometimes even gentle handheld shots depending on the lens aperture and amount of detail in the scene.

Read moreThe Panasonic GH2’s own ‘mud-gate’

First ever NEX5 video arrives on Vimeo

The first ever NEX5 video on Vimeo isn’t a looker, but it does help confirm one important advantage over GH1.

Even with all that shaky and awful camera work, there aren’t any issues with mud! If you’re interested in a more scientific approach than that, and dotting the I, P and B’s, this fact is also confirmed by our friend Vitaliy who has been analysing the I,P,B frames of the NEX5’s .MTS stream.

Read moreFirst ever NEX5 video arrives on Vimeo