August 31, 2014, 06:26:38 AM

Author Topic: Shoot 2K, 3K & 4K on a T2i/550D?  (Read 33023 times)

jonah

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #15 on: December 30, 2010, 01:50:37 PM »
The sensors on HDSLRs, being still sensors, are incapable of being read at full res at full speed for video. They skip lines to achieve this, and the result is that the 1080p video recorded on those cameras is not actually anywhere close to maxing out the detail on 1080p.

Proof:
http://prolost.com/blog/2009/12/3/you-didnt-believe-me.html
http://prolost.com/blog/2010/9/2/ha-ha-very-funny-canon-now-get-back-to-work.html

So I really don't think this anything but a way to write that same inadequate signal at a higher resolution and bit rate. I think 2k at a much higher bit rate might be worth it (better compression is better for sure), but since the signal can't even fill a 1080p signal I think 3k and 4k are going to just be absolutely pointless.

For those that don't know, 2k = 2048x1024, 4k = 4096x2048 resolution. Since the signal can't fill 1920x1080, what hope can it possibly have of filling quadruple that many pixels?

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #15 on: December 30, 2010, 01:50:37 PM »

deeznuts

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #16 on: December 30, 2010, 02:46:36 PM »
Since I'm a hobbiest, I just want to see the 720p 120fps in action.

Actually I'd be happy with 60fps (5dmii)

Quellik

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #17 on: December 30, 2010, 03:09:06 PM »
Sounds too good to be true.

I am uploading the audio from the QA Session right now and have published all released facts:
http://www.video-dslr.com/Canon-EOS-4k-Firmware-Hack/

Master_of_the_Universe

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #18 on: December 30, 2010, 05:32:25 PM »
I don't believe it.

I'd love to be wrong though.


licht

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #19 on: December 30, 2010, 07:03:29 PM »
I red that the codec is m-jpeg to push the 4K through the max bandwith of 175mb/s
I did knew it's possible to add codecs at the canon's OS, it's not cpu implemented ?

Maybe they use the"regular"  jpeg output of the processor, the one for stills and bypass the poor line-skipping
and H264 encoding ... The result maybe encoded easily as Motion-jpg ?

Basically, if you look at what the firmware seems to offer, it's what you might obtain when using rafale mode
and buffers at speeds and power that bypass Canon safety rules and marketing positioning ...
You add the codec to put the mjpeg datas at 175Mb/s
and you get an interesting project ....

I can not imagine Canon accepting that someone sells firmware updates for their products !
Or perhaps they will let it go because of the great number of dead smoking Eos bodies
people will get back to shops with no hopes of refunds because of an overheat using a non-Canon firmware ...
 :-*

Look like also that you have to wait 30s between two shots at full lenght !!!! time to transfert datas from the buffers to the media card.
so, wait 30s between two 90s 2k shots, ok I could manage ... but 30s of wait each 6s in 4k !
That won't work on field !



clicstudio

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What's with the number 11 and these guys?
« Reply #20 on: December 30, 2010, 07:13:29 PM »
 :P :) ;) :D ;D >:( :( :o :o 8) ??? ::) :P :-[ :-\ :-* :'( :-X
Canon 1D X, Canon 24-70 F2.8L II,  Canon SpeedLite 600 EX-RT, 5x Paul C. Buff Einstein Flashes with Pocket Wizard PowerMC2's, Pocket Wizard Mini-TT1, Pocket Wizard AC3.

LukeS

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #21 on: December 30, 2010, 11:35:13 PM »
Quote
First two releases will be free. Later releases will cost around 50 USD.
http://www.video-dslr.com/Canon-EOS-4k-Firmware-Hack/

This will piss some people off including canon.  Canon chooses to look the other way on magic lantern and CHDK because they are free open source community projects.  The creators of magic lantern and CHDK have said that if cannon wanted they could easily step up the security and make it much harder to hack.  Charging users for hacked firmware could easily push canon over the edge and start implementing more security features in their firmware.  Plus you will be charging for something that is based of a lot of other peoples free work.  There is no doubt that this is based off the work of CHDK and magic lantern as a starting point.

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #21 on: December 30, 2010, 11:35:13 PM »

Neuron

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #22 on: December 31, 2010, 09:08:25 AM »
This is clearly a fake. When he does the whole "oops! thing" he goes into image display mode  where you can see 3 images (Edit: this part happens 1min 41 secs in).
 
Each image has the blue "selection" square on either 16k, 8k or 4k. So when's he claims that he's scrolling through the software he's only really just moving through the 3 images.

That's why he didn't scroll down or actually show himself recording anything.

Edit 2: I'm slightly confused about something. Is this guy a 2nd person to do this hack, because Earz62801 (the guy from youtube who started this whole thing) has a different looking software in his video. In any rate, wether the original video is legit or not, this one is, as the great lords of mythbusters say, BUSTED.
« Last Edit: December 31, 2010, 09:19:18 AM by Neuron »

kubelik

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #23 on: December 31, 2010, 09:19:03 AM »
yeah, definitely looks like april fools day came early this year

Justin

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #24 on: December 31, 2010, 10:02:47 AM »
The video looks to be a joke.

buzzski

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #25 on: December 31, 2010, 10:06:18 AM »
+1 Neuron. He's got three images he's scrolling through making it look like a menu. Silly mistake!

Pau

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #26 on: December 31, 2010, 10:26:58 AM »
I agree with buzzski and Neuron. It is quite obvious that he accidentally pushes the zoom out button and you can see three pictures, each with a different resolution selected; simulating a menu which he is scrolling through. In addition, 16k video is  approximately 128 megapixels each frame if it is a 2:1 ratio (aprox. 16,000 x 8,000), and the T2i has a maximum resolution of 18 megapixels. It clear that this is a fake; and whoever made this is probably laughing his head off at home watching us debate.

gabriele

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #27 on: December 31, 2010, 10:37:25 AM »
It looks just like he's switching between 2 pictures.
I bet that if he pressed the down arrow it wouldn't go down and if he pressed the display button it would show the picture count ;-)

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #27 on: December 31, 2010, 10:37:25 AM »

Neuron

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #28 on: December 31, 2010, 10:38:11 AM »
Pau, I don't think it was accidental at all and that he pressed the button on purpose. The whole thing stinks of amateur acting.

macfly

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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #29 on: December 31, 2010, 10:55:35 AM »
Hilarious, one prank give births to another,
I can fly to the moon on my broom,
f'you I can fly to Mars on mine!!


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Re: Shoot 2K, 3K & 4K on a T2i/550D?
« Reply #29 on: December 31, 2010, 10:55:35 AM »