(Info in Norwegian:
Denne artikkelen er på engelsk fordi den kan ha internasjonal interesse. Og til dere som er lei av Canon 5D: bare hopp over denne artikkelen og gled dere til det andre vi har utsatt litt fordi denne nye dingsen kan se ut til å endre litt av måten vi jobber på i bransjen vår.)
We’ve managed to get hold of some video clips from a Canon 5D Mark II pre-production model. We will not publish the clips here, but we’ve analyzed them and these clips turns out very promising.
Please read the following with the fact that the clips probably are taken with an early, not finished model of the camera in mind. We take no responsibility for the accuracy of the data we’ve found compared to the clips that a production model of the camera will give. The good news is that if there turns out to be a difference when the camera is released it will probably be to the better.
Here are our results:
The clips are standard MOV-files that will open directly in QuickTime. We also tried with the latest version of VLC. That worked fine on Mac
and but not in Windows. In iMovie the clip was imported fine, but converted like any other MPEG4-clip will be in that program. In Final Cut Pro the clips could be dropped right into the program with no conversion. And it was possible to start editing right away.
Visually they look better than HDV. Something that shouldn’t come as a surprise considering the specifications. HDV is 25 mbit/s MPEG2. The clips from the 5D is 40 mbit/s MPEG4. The H.264 codec used in the 5D is in some conditions regarded roughly 50% better than MPEG2. When you add the bandwidth in the 5D that is nearly twice the bandwidth of HDV you get video footage with less compression artifacts.
Hard panning in the clips looks good and it seems like Canon have managed the timing of the shutter very well.
It looks like the GOP-structure of the clips are one I-frame for each 15 P-frame. No B-frames.
The auto-exposure seems to follow along well through the clip. We were not able to analyze the focusing or stabilizing. According to Canon the image stabilization of Canon’s IS-lenses is active during video recording.
All in all this looks very promising and the 5D Mark II looks like a device that can cause quite a change in how we do field production. The possibility to add an external stereo mic and the fact that you can shoot full resolution stills while filming will open new possibilities for news reporters. (Shooting stills while filming will give a short break in the video, but the camera continues filming after the still image has been stored).
Click the thumbnails below to see the bitrate histogram and the properties of the clip.
Other articles in english here at NRKbeta.no:
And you also might waht to have a look at our image gallery and the video showing the 5D Mark II (article in Norwegian).