Originally Posted by Pavel Sedlak (Post 1865792)

But no debayering, this 4K sensor was designed for RGB444 with no debayering:

Originally Posted by Pavel Sedlak (Post 1865792)

I don't understand this:

The Canon DIGIC DV4 image processor separates the RGB output from the camera’s 8.3 Megapixel CMOS imager into THREE individual 8 megapixel signals (as opposed to 2MB in the EOS C100)

...for noticeably improved image quality.----

Why somebody needs three 8 megapixels for HD image?

Originally Posted by David Heath (Post 1865853)

...I for one cannot believe that that extra complexity has been introduced solely to improve the quality of the 1080 image - though it may do that somewhat - it's effectively doing a full deBayer to get 4k, then a downscale to 1080 HD.

What I infer is that the camera front end is now fully capable of a 4k output - even if not enabled in this camera. Hence, the likely prime reason for the new processor is to use such in a forthcoming 4k camera model. As others have said, the question remains as to what codec Canon will use to do that - but they must be seen as readying the ground with this new front end.

Originally Posted by David Heath (Post 1865853)

Not quite - the sensor was designed for a dual function - 4:4:4 1080 via "simple readout", or 4k via normal deBayering (as the case with the C500)

(Pavel - I'm in full agreement with with what you say technically - it's just how the processes are described.)

Yes, good questions.....!

Fundamentally, it sounds like the DIGIC DV4 is doing a full deBayer - that's effectively what the three 8 Megapixel R,G,B images are!

I for one cannot believe that that extra complexity has been introduced solely to improve the quality of the 1080 image - though it may do that somewhat - it's effectively doing a full deBayer to get 4k, then a downscale to 1080 HD.

What I infer is that the camera front end is now fully capable of a 4k output - even if not enabled in this camera. Hence, the likely prime reason for the new processor is to use such in a forthcoming 4k camera model. As others have said, the question remains as to what codec Canon will use to do that - but they must be seen as readying the ground with this new front end.

It raises the interesting question of whether a future firmware upgrade could enable the 4k ability. I'm of no doubt that as far as camera front end and processing goes it is likely up to it - the question is what the coder is capable of? Is it an AVC-HD coder, period, or something more sophisticated with only the AVC-HD ability enabled at the moment?

Either way, I fully expect to see a new 4k camera from Canon before long - and something along the lines of an updated C300 seems most likely. I'll stick my neck out and predict most likely before NAB, but we'll see.

Originally Posted by Cliff Totten (Post 1865820)

Call me crazy but I somehow completely believe that Sony will build another "100" class camcorder again in the future to fill that marketing void and challenge Canon's C100 again. (And even Panny's AF101)

Originally Posted by Noa Put (Post 1865902)

to a recorder that is as expensive as the camera :) in that way the fs7 is a better alternative.

Originally Posted by Jean-Philippe Archibald (Post 1865901)

They already have there new entry level 6k$ camera. it is called the FS700 Sony NEX-FS700R Super 35 Camcorder (Body Only) NEX-FS700R B&H

They dropped the price when they announced the FS7. They could wait at least a year with the FS700 as entry level. it's just 500$ more than a C100 mk2 and you get super slowmo, and the ability to do 4k externally!

Originally Posted by Jean-Philippe Archibald (Post 1865911)

Of course it is! I have one on pre order.

But the Fs700, as an entry level camera at 6k, is a lot of a camera! On the C100 mk2, if Canon decide to allow 4k via a firmware update, it will be most definitly on an external recorder via HDMI, since the SD card slot won't cut it.

Originally Posted by Cliff Totten (Post 1865862)

As far as the CODEC? Sony's XAVC is not really a "codec" from Sony. The higher h.264 profiles have existed for years and years. Sony just pulled the specification they liked from the same H.264 book that everybody else has access to. They simply wrap it the way they want and give it a logo. Canon could easily do the same with h.264 and call it their own name. (They could just make a single file structure in a common .mp4 container?)

Originally Posted by Rakesh Malik (Post 1866361)

That's incorrect. XAVC is based on h.264, but it's quite different from what we normally think of as h.264. For one thing, it has higher picture quality at a given bit rate than h.264, but for another it's more friendly to editing and color grading. It's more different than just a new wrapper + brand.

Originally Posted by Rakesh Malik (Post 1866361)

That's incorrect. XAVC is based on h.264, but it's quite different from what we normally think of as h.264. For one thing, it has higher picture quality at a given bit rate than h.264, but for another it's more friendly to editing and color grading. It's more different than just a new wrapper + brand.

Originally Posted by Cliff Totten (Post 1866480)

AVCD for 29.97p 8bit 4:2:0 is set at 24mbps and uses a HIGH 4.0 H.264 profile.

XAVC for 29.97p 8bit 4:2:0 is set at 50mbps and uses a HIGH 5.1 H.264 profile.

So yes. XAVC will be WAY more durable in post than AVCHD.

Originally Posted by Mark OConnell (Post 1866503)

I've been shooting 4K at 60p, 4:2:2 10 bit, 600 Mbps. It rocks.

Originally Posted by Galen Rath (Post 1866510)

What camera, Mark?