The New Canon EOS-1D X as far as video concern

daveswan said:
*IF* the I-Frame is 3x the IBP codec *AND* the IBP codec has a comparable bit-rate to the "bog-standard" Canon H.264 implementation (As intimated) then we get 120-150 mbps, comparable to AVC-Intra, so 10 bit 4:2:2 is *JUST ABOUT* possible.
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I think people are reading way more into it than what's warranted with the info that's been released. For example -- Canon currently has h.264 at 50mbps in their DSLRs, but it's nowhere near as good as 21mbps of h.264 in an AVCCAM product, and it's not even as good as 35mbps of MPEG-2. There are a lot of optional components when designing an h.264 recording system. Not all implementations use all the same toolsets, and therefore you can get wildly different results even at the same bitrates. Will 360mbps of Canon I-frame "blow away" 100mbps of AVC-Intra? Or even be comparable? That remains to be seen. You can't judge a codec or its capabilities on bandwidth alone, or you'd think that 50mbps of Canon h.264 would be better than 24mbps of Sony h.264 NXCAM, and that's just absolutely not the case, NXCAM is dramatically better than the DSLR codec.

Without some actual testing and some clear technical details released, any speculation on the Canon codec implementation is just that -- speculation.
 
The rep addresses that point... he mentions the IBP will be smaller in filesize to the 5DII version... but better quality.

But, you are right... nothing we can gauge from mbps size without knowing more about the codec "flavour"
 
To some extent I was "just thinking aloud", but yes, until we see some real footage it's just speculation, hence all the emphasised ifs and ands and possiblies :).

Dave
 
In the video at 4:50, the Canon rep says they're not line skipping. They're using the whole sensor. That's pretty a big deal!

The rep also says the All-I codec isn't going to be vastly better, like RAW. It's mainly for easier editing.

HDMI is not clean because there's some conflict with the video division...hmm.

No headphone jack because there's no space due to ethernet port, but IMO, I get the feeling that this was also due to conflict with the video division.

Hardware is done, but they still needs months and months to tweak the software. Just goes to show how long this take.

Also interesting is at the beginning he says Canon seems to be more willing to give a roadmap of their future products now (that's why this is being released so early).
 
watching the video:
* he says all-I is 3x the bitrate of IPB (second time we hear this)
* he says the new IPB is more efficient than previous H.264, giving similar image quality in slightly smaller file size
* he says the 30min limit is reached in two-and-a-half 4GB files, so 10GB for 30min, 12min per 4GB file, just like with my current canon

this could point to 33Mbps and 100Mbps or something like that (my previous guess was 17Mbps and 50Mbps, but I wouldn't call 17 "slightly smaller" than 50)

still lots of noise and not really good information; perhaps because they're still tinkering with the codec part of the camera
 
Piolet said:
HDMI is not clean because there's some conflict with the video division...hmm.

No headphone jack because there's no space due to ethernet port, but IMO, I get the feeling that this was also due to conflict with the video division.
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Sad times when Canon joins the league of companies that destroy potential because of cannibalization paranoia (Cough... Sony...).
 
Barry_Green said:
I think people are reading way more into it than what's warranted with the info that's been released. For example -- Canon currently has h.264 at 50mbps in their DSLRs, but it's nowhere near as good as 21mbps of h.264 in an AVCCAM product,...
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Even canon's h264 codec is WAY better than HDV. Also it is considerably better than Sony's AVCHD implementation in Nex-5n. Nex-5n makes motion all mushy and blocky. The Canon codec is surprisingly good with motion, it only breaks up when heavily graded.
 
kylevant said:
Sad times when Canon joins the league of companies that destroy potential because of cannibalization paranoia (Cough... Sony...).
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At least is one more indication, if we still needed one, that their large sensor videocam is on for Nov. 3 :)
 
kylevant said:
Sad times when Canon joins the league of companies that destroy potential because of cannibalization paranoia (Cough... Sony...).
Click to expand...

I know it's frustrating for consumers because we all want the best for the lowest price, but tiering your products is just business and eventually market forces causes everything to equalize. Everyone does it and even RED is not immune to it.
 
Piolet said:
the Canon rep says...HDMI is not clean because there's some conflict with the video division...hmm.

No headphone jack because there's no space due to ethernet port, but IMO, I get the feeling that this was also due to conflict with the video division.
Click to expand...

Crazy conspiracy theory alert! Tin foil hat alert! Point and laugh! Tar and feather!

....Oh wait. So a Canon REP said it? Admitted to artificially holding back easy-to-implement technology for the sake of profits? Don't they know they're going to have their "lunch eaten by their competitors" now? Don't they know they're going to get "left in the dust"? Don't they know this only works when a company "has a monopoly" on the product in question? Wasn't that the consensus around here?

Nom nom nom this crow is DELICIOUS!
 
Piolet said:
I know it's frustrating for consumers because we all want the best for the lowest price, but tiering your products is just business and eventually market forces causes everything to equalize. Everyone does it and even RED is not immune to it.
Click to expand...

When describing his period of exile from Apple — when John Sculley took over — Steve Jobs described one fundamental root cause of Apple's problems. That was to let profitability outweigh passion: "My passion has been to build an enduring company where people were motivated to make great products. The products, not the profits, were the motivation. Sculley flipped these priorities to where the goal was to make money. It's a subtle difference, but it ends up meaning everything."

. . . .

Here's new CEO Tim Cook, on the iPad disrupting the Mac business: "Yes, I think there is some cannibalization... the iPad team works on making their product the best. Same with the Mac team."

It's almost unheard of to be able to manage disruption like this. They can do it because Apple hasn't optimized its organization to maximize profit. Instead, it has made the creation of value for customers its priority. When you do this, the fear of cannibalization or disruption of one's self just melts away. In fact, when your mission is based around creating customer value, around creating great products, cannibalization and disruption aren't "bad things" to be avoided. They're things you actually strive for — because they let you improve the outcome for your customer.

--- Steve Jobs Solved the Innovator's Dilemma (http://blogs.hbr.org/cs/2011/10/steve_jobs_solved_the_innovato.html)
 
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