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I am not one for publishing rumours. There are many sites out there doing that sort of thing so I normally avoid it as speculation is a bit pointless, but this one is so odd and unlikely but I guess could conceivably happen that I had to share. I was just notified on my Facebook pageby Forian Bottger about this that someone called Earz62801 will be releasing a firmware hack for the T2i/ 550d (not the other Canons) that will give it 2K, 3K,4K video recording capability and bit rates between 45mb/s and 175mb/s. . The date of the release is Jan the 1st. This is nothing to do with Magic Lantern, just totally out of the blue from this person. There is no other information that I can find about it.
If this is possible can the camera handle it? Will it melt? Surely the sensor cannot handle that sort of readout at 24fps? How long can it record at this resolution or bitrate? 4 frames? Won’t the buffer bottleneck it? So many questions and no answers yet. The guy on you tube is being very cagey and there is nothing in his history to suggest a firmware hacker but I guess we will wait and see if this is a hoax or the real thing, it’s a bit early for April the 1st! I already did that earlier this year and got yelled at by a lot of people even though it was on April 1st!
He gives the following info on the YouTube description:
2k: 175mb/s = 91 seconds of footage
3k: 175mb/s = 32 seconds of footage
4k: 175mb/s = 6 seconds of footage
So if this is real…how useful is 6 seconds of 4k? Not enormously. What I really would like a hacker to do is sample that big sensor down to 1080p in a much better way than it currently does so we lose that damn moire and aliasing. That’s all I want, I don’t really need that resolution for anything I do and with those limitations it would be a right pain to shoot with.
EDIT: I emailed him and got this back:
Hi back, Yes This one hundred percent real. We’ve been working on this with the t2i, 60D, and the 5D Mark II. We were stuck..missing a whole bunch of steps. But when Magic lantern was released, it opened up those missing holes. So we got excited. Last night was the first time I slept in six days haha.
We knew there were limitations with t2i and bending those limitations wasn’t exactly an easy task. Just think, a few days ago we were only able to to shoot not even 2 seconds of 4k footage. As of today on the 3 t2i’s we’ve tested it on…it’s holding steady at a little over 6 seconds.
Our next release 1.0.3 will ad different frame rates.
This all came about from a couple of guys sitting on the couch, drinking beers and watching football. The question was ” If we can make a 4k timelapse and take pictures in 5184×3456, can we make the thing shoot video in 4k without destroying the camera and at minimal bitrates?” At first all we kept coming up with was NO it can’t be done.
We both thought that the t2i didn’t exactly shoot in 1080p, we thought it was a little under that. But what canon did was limit it on purpose. Basically what I’m saying is the processor for shooting video wasn’t exactly opened up to it’s full extent.
I’ll be answering questions today on Ustream at 12pm est.
EDIT The USTREAM was equally painful and funny in equal measures. Live trolls being abusive, non stop stream of questions. Key things I learned and thanks for video_dslr.com for compiling the info
We won’t know for sure till Saturday at 11:11pm EST if this is real, but I spoke to Magic Lantern’s Trammell Hudson and he doesn’t see why someone would do this as a hoax.
will be released on January 1st 2011 11:11pm ESTwill be free4K resolution will be 4096×230460p in 1080p mode possibleMoire and aliasing “fixed”5D Mark II support will be released on January 11, 2011Recording time in 4K is only 6 seconds. Maybe 10 seconds in future releaseWriting 6 Seconds of 4K footage to card takes about 30 seconds.25p is NOT going to happen. Probably never.Heating was a problem until 6 days ago. But not anymore. ALTHOUGH when pressed about how much they have recorded they said that had done about 200 or so clips at 4k with no issues, although he said they waited 15-30 seconds before hitting record again. I would like to know what happens if you don’t wait 15-30 seconds!Has built in limiter so you won’t brick your cameraBattery will be sucked up pretty fast.Will NOT record in 16:9 (coming in future release)Will be frist released for T2i (550D) and will later come to 7D, 5D Mark II. No Word on 60D yet.Monthly updated planned on each months 1stFirst 2 releases will be free. Later releases won’t. Will be around 50 USD“Rolling Shutter isn’t much of an issue” Vague…No drop framesYoutube User Dod3032 will get the firmare one day early and will put up videos on youtube on 2011-01-01Sourcecode will also be releasedLiveView won’t work while recordingHDMI Out will still work which is how you monitor shot, doesn’t say what rez monitor you need1080p with 175Mb/s Bitrate looks gorgeousWorks only with fast Class 10 cardsWorking cards are: Sandisk Extreme III class 10 8gb and above. Transcend class 10 16gb and above and Lexar Pro class 10 32gb.Color-Space 4:2:2No playback in-camera7D Security is a pain in butt because of firmware counter. So no support yet. This is the reason Magic Lantern do not have a version yet for the 7DNot T1i (they don’t have one)Development took about 2 months in totalSpecial Website will be up soonThere was talk of it future version costing $50So that’s it really. That was long hour (which went on for over double that!)
（以上文章来自：http://philipbloom.net）
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发表于 2011-1-1 13:34
