Some Conflicting EOS-1D X Mark II Specifications [CR2]

I just checked the video output format of the Nikon D5 and D500, 4K video is output in .MOV Quicktime with the .264 codec.

So, compressed video. Afaik, uncompressed video can only be found on professional video cameras, Alexa, Red, etc.

Stitching pieces of 3 minute compressed .mov video together isn't going to help quality.
 
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hoodlum said:
Digicame has updated their link with more info.

20.2MP CMOS sensor with dynamic range improvement

•Dual pixel CMOS AF
•ISO: 100-51200 (expanded in 409600)
•61-point AF system, expanded range, 41-point cross-type, all of the distance measuring points can be selected
•At f/8, 61 points can be selected
•AF is -3EV
•360000 dot photometric sensor. EOS iSA. EOS iTR
•0.76 times the viewfinder magnification. 100% field of view
•Improved AI AF accuracy and motion tracking Servo AF III +
•Dual DIGIC6 + processor
•New mirror drive system that enables high-speed continuous shooting
•Video 4K 60fps. Full HD120fps, 4K video can be recorded in internal CFast2.0 media
•Movie servo AF
•Continuous shooting up to14 fps, 16 fps in live view mode
•Continuous shooting in RAW: 170 frames (at 16 frames / sec.), unlimited in JPEG
•Dual pixel CMOS AF, enables smooth AF with 4K video
•LCD monitor 3.2 inches, 1.62 million dots. Touch panel.
•Camera digital lens Optimizer (DLO), lens aberration correction, diffraction correction
•CFast2.0 and compact flash slots
•GPS built-in
•USB3.0 terminal, HDMI terminal
•Dust and water resistant
•Wi-Fi option (WFT-E8)
•Dimensions: 158mm x 167.6mm x 82.6mm
•Weight: 1340g


YES canon is finally giving us a real deep RAW buffer!!

I'm happy for all wildlife shooters on either side who don't have to worry about filling their buffers anymore :)
 
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Reality Merely Illusion said:
I'm happy for all wildlife shooters on either side who don't have to worry about filling their buffers anymore :)

Never had that problem on Mk1 either using fast cards, but nevertheless I welcome the upgrade.

Just curious, I wonder if the original piece read 二十点二Mpix, for non-speakers with quick glance that could be 22 easily I guess.
 
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tpatana said:
Reality Merely Illusion said:
I'm happy for all wildlife shooters on either side who don't have to worry about filling their buffers anymore :)

Never had that problem on Mk1 either using fast cards, but nevertheless I welcome the upgrade.

Just curious, I wonder if the original piece read 二十点二Mpix, for non-speakers with quick glance that could be 22 easily I guess.

That, or 202Mpix. Seen that too many times in China (sigh)
 
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dilbert said:
Nininini said:
...
Stitching video together is always high risk. Files contain headers, color data, often compression, you want to avoid it as much as possible. I'm not a professional videographer, I just make some youtube videos, but almost all the issues I have experienced with video happen during stitching and rendering.

Are you stitching together videos that come out of the same camera/device/time & day or different?

Just rendering in a different format almost always causes color changes. if you turn a .mov file into MP4 for example, I can use 3 programs for it, handbrake, vegas or video studio, all 3 have very slightly different colors.

That applications have different color is not unreasonable - so too do Canon's DPP, Adobe's Lightroom and Phase One's Capture 1. So keep everything in the original format until joined together.

But all this is very interesting because FAT 32 (used by all of Canon's DSLRs) limits the individual file size to 4GB.

To use some numbers from here:
http://www.imaging-resource.com/PRODS/canon-5d-mkiii/canon-5d-mkiiiVIDEO.HTM
91Mbps ~ 11MB/sec ~ 660MB/min ~ 6:12 minutes long.
31Mbps ~ 4MB/sec ~ 240MB/min ~ 17 minutes long.

Of course maybe imaging-resource.com is lying but I've seen many references on the web that point to such limits on video recording time due to FAT32 file sizes being limited to 4GB.

For those that are shooting video on Canon DSLRs, what video rate (in MB/min) do you get? And what size cards are you using?

Is anyone here using the Canon 1DC? For 4K, what was the maximum duration for a single file and at what bit rate?

Now for 4K video, assume the bit rate at least doubles and if the bit rate doubles then the maximum file size in terms of minutes halves. Which gives us a file size of about 3 minutes for 4K on a FAT32 card.

From the 1DC manual is this little segment (page 56) http://www.manualslib.com/manual/430741/Canon-Eos-1d-C.html?page=56:
Cards with 128 GB or lower capacity will be formatted in FAT format.
Cards with a capacity over 128 GB will be formatted in exFAT format.


... this is apparently true for many other Canon DSLRs (5D Mark III included.)

So the file size limit will also kick in on the 1DC if you're using a 64GB or smaller sized card for 4K video recording.

dilbert, it is very obvious you do not shoot video much (if at all), so why are you going on about it? Talk about something you do know about.

But to answer your question. The 1DX will make a new file when it reaches 4GB.
 
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expatinasia said:
dilbert, it is very obvious you do not shoot video much (if at all), so why are you going on about it? Talk about something you do know about.

22515119.jpg
 
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dilbert said:
expatinasia said:
...
But to answer your question. The 1DX will make a new file when it reaches 4GB.

i.e. the 1DX is both time (29:59) limited and file size (4GB) limited when recording video to FAT32 cards. The 1DC has the same problem. So to do all of Canon's DSLRs that shoot video. A quick bit of searching with Google will reveal many others finding that their camera stops recording video well before 29:59 because of the file size issue. The 1DXII will have the very same limitation. As does the Nikon D5. Expect shooting video on the D5 to be the same as with a (say) 32GB card on a 1DX. The other side of this is that if you can get half an hour of video into 4GB on the 1DX then providing their codec has a similar bit rate, you'll be able to do so on the D5. This makes it clear that the Nikon camera is (now) behaving no different to the 1DX - and I haven't seen anyone complain about having to merge multiple files from the 1DX.

The only difference is that at 4K, the file size limit is reached much sooner than with 1080p. That is unless the bit rate is lowered (in which case you may as well shoot 1080p.)

Therefore if you want to shoot 4K video and not have short x264 video files on the 1DXII, you'll need to buy 128GB or larger CFast 2.0 cards. Does anyone know if the 1DXII will record in x265/HEVC?

I know, you want to say "but I get many more minutes than <X> in my 4GB file and if you shot real video you'd know." Depends on subject matter.

The 1DX does not stop recording well before 29:59 and I have gone past that a few times.

A 3.95GB Full HD recording on the 1DX is about 18:01 mins.

Another file is 3.98 GB and that is 18.11 mins.

I still have not deleted either of the files from my computer so I did not need to rely on second hand info.
 
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dilbert said:
expatinasia said:
...
The 1DX does not stop recording well before 29:59 and I have gone past that a few times.

Really? Are you saying that Canon is being misleading when it talks about a 29 minute, 59 second file size limit?

A 3.95GB Full HD recording on the 1DX is about 18:01 mins.

Another file is 3.98 GB and that is 18.11 mins.

I still have not deleted either of the files from my computer so I did not need to rely on second hand info.

In both of these cases, the 1DX has stopped writing to the file at the 18 minute mark. A little bit more than half way to 29:59. I'd call "18 minutes" well before "29 minutes and 59 seconds". Maybe you don't but I do.

Lets see what Canon says. From:
https://learn.usa.canon.com/resources/articles/2012/ipp_ipb_all_i_compare.htmlp

IPB compression, 1080p – approx. 13 minutes (for 4GB file)
ALL-I compression, 1080p – approx. 5 minutes (for each 4GB file)


But wait, you get more! How is that possible? Canon would have to quote "worst case scenario" - or what Canon can guarantee.

If 4K is 4x the size of 1080p then 1/4 of 13 minutes will be roughly 3 minutes (but that's a much higher bit rate codec too.) It will be interesting to see what sort of 4K video capabilities the 1DXII arrives with.

On paper, if the Nikon D5 is limited to 3 minute segments for 4K then the codec is outputting video at around 180Mbps (22MB/s). That's even higher than what I see for 1080p MXF files (constant 50Mbps.)

How many Mbps are those 18 minute, 3.9Gb files?

What I don't get is why someone that knows video (like you) doesn't appreciate what it means if a 4GB file is only 3 minutes long. Surely you'd get that it means a high bit rate? Or are you simply not interested in high bit rate recording and that you prefer more minutes than more Mbps?

This will be my last post on this topic, as it is pointless talking to you, and quite frankly I wish I had not started.

The 1DX does not stop recording at 18:XX mins the video file just gets put into another file.

The 1DX will keep recording continuously for 29:59 mins.

The 29:59 minute limit is the continuous recording time. The 1D X does indeed stop recording at that moment and you need to start recording again, losing about 2-3 seconds of image if you are paying attention.

The videos I mentioned which are about 3.8GB in size and roughly 18:XX mins long were recorded in IPB at 1920x1080 at 25 frames per second.

That's all from me. Ciao.
 
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Thanks for sharing this. If true would be a great upgrade that cannot be given with firmware!

eml58 said:
PureClassA said:
These rumors do nothing for me ... Cuz they are rumors. And a AA filter on/off switch??? It's a physical part of the seonsor. It's either there or it isnt (or canceled). That alone should give us all some pause as to how valid this rumor is

I have the Sony RX1R II, have a look at this to see how the AA Filter is handled in this Camera, it's possible Canon may have developed something similar.

https://www.youtube.com/watch?v=ZKoWrkEj1qo

I've only had the Camera a month but it seems to produce pretty amazing Files for a small Camera, there's little doubt in my mind that Sony is one of the very few Camera Companies that seem to be actually developing new tech & putting it into their Cameras.

Still, I'm not about to get rid of my 1Dx/5DsR just yet.
 
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“Specifications may not be perceived as exciting as the Nikon D5.”

- Which ones exactly? The fact that Nikon even felt the need to release a D4s to catch up to the 1DX just goes to show how far the 1DX was, if the D5 finally reached its level then the 1DX2 would just move the goal posts farther. The Nikon camp is more excited because it had a lot more catching up to do, the 1DX2 only had to reflect the current state-of-the-art since the 1DX was basically almost perfect already.
 
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takesome1 said:
Jack Douglas said:
The official news is not today later on, right, rather Monday? This running to the computer umpteen times a day needs to stop!

Jack

I am betting against a big DSLR announcement. In the past when a new body was released there was all kind of buzz going around by this time.

It is looking like a false run.
I thought it is gonna be Tuesday.
 
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