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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 01 Feb 2016 (Monday) 01:01
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Official specs: Canon EOS-1D X Mark II

 
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idkdc
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Mar 01, 2016 17:44 |  #871

sploo wrote in post #17919732 (external link)
The 5D3 resolution is (coincidentally) 3 times that of 1080p (once the top and bottom are cropped). Doing something similar for 4K isn't so easy though. Something around 26MP would give 1.5x 4K resolution, which might help a fast/efficient algorithm.

EDIT: Though I think the 1Dx2 is taking a 4K res crop from the sensor, which is another option.

Yeah, exactly, it's less about getting the biggest megapixshuls possible and more about matching or cropping correctly for efficiency. The 1Dx2 is DCI 4K crop, which roughly translates to the 1.416 or something crops of Super 35 sensors of yore (wider than 1.3x 4:3, I believe).

Yea, I had that in mind when writing my above post but didn't state it explicitly. You could make a high MP camera with an fps rate that matched a lower res body, but it'd cost. If you did it and tried to keep the sale price down (to be competitive), people would complain that they'd have preferred more fps and less MP.

Exactly. Canon has promised answering each need with specific camera models that will keep each group happy instead of compromising with one-size-fits-all options.


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Mar 01, 2016 17:47 |  #872

idkdc wrote in post #17919734 (external link)
They could just put 50 MP in ISO 128,000 design at 16 fps, discontinue every other camera model in existence, name it the 6D and sell it for $2k.


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Mar 01, 2016 17:56 |  #873

sploo wrote in post #17919747 (external link)
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forum: Canon EOS Digital Cameras

IRL, we'd probably be talking 12-36K though if we were to add 4-5K 240fps video with raw output on top of it, because why not at that point.


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Mar 01, 2016 22:21 |  #874

idkdc wrote in post #17918493 (external link)
Can you explain what verification build vs validation build means?

From the way our company approaches it:

Verification : Every device off is checked to make sure that it meets the acceptance criteria

Validation : The production line is proven to produce devices that meet the acceptance criteria




  
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Mar 01, 2016 22:59 as a reply to  @ post 17919604 |  #875

Can this line of DR/noise thinking help explain why the 1DX 1st gen had better image quality than the 5Diii ??
or was it that the 1D series simply had better spec'ed components all throughout the image chain.....


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Mar 01, 2016 23:02 as a reply to  @ idkdc's post |  #876

I like having a hammer, a screwdriver, and a saw versus a hamscrewsaw. Seems the latter always has some
compromise that nails me and leaves me wishing for the specialist body.


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jonneymendoza
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Mar 02, 2016 04:46 |  #877

idkdc wrote in post #17919509 (external link)
*Rolls eyes.*

rolls eyes back to u!


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jonneymendoza
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Mar 02, 2016 04:52 |  #878

JeffreyG wrote in post #17919675 (external link)
This just really makes no sense. The 5D Mark III is a very important camera in the line, and all they need to do is stick a sensor with better DR in a very similar body, call it the 5D Mark IV and they have an instant winner.

There is no way Canon ends this line. And there is no way they rename it a lower name (6D) because then how do you price it? $3500? - no, because the name tells people it is supposed to cost $2000.

Also, there is price room from 6D ($2000) to 5D ($3500) to 1D ($6000). If anything, the high resolution 5Ds is the odd duck, which I think they will keep but continue to market to the niche.

my point is that they released that 5ds which fills that 3500k mark .

So but making the 5ds the only 3500 camera and then a 6dmk2 that is a 5d4 in disguise would make sense.

do we really need two all rounders? ie a 6d and a 5d? Whats the point on the 5ds range then at the same price point as a 5d but with less features and just more mp?


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Mar 02, 2016 05:08 |  #879

Well the rumor mill has a 5dx in the works with dual pixel AF, 1dxii AF, and 4k recording, so it appears that the 5d3 will have its naming convention changed to align with 1d series, and still lives on. It won't be swallowed up into one of the other ff offerings.


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Mar 02, 2016 05:12 |  #880

Can someone put into simple terms why Dual Pixel AF cannot work in stills mode?
I've had GH4,A7s and yet to shoot video with any of them, doubt I'll enjoy it with the 1DXii either.


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Mar 02, 2016 05:17 as a reply to  @ MedicineMan4040's post |  #881

It does, just go to live view mode and shoot stills.

If you mean in non live mode, its because there is a mirror in the way preventing the sensor from seeing the scene. The sensor is the AF system in live view, but with the mirror down, the other AF system has to be engaged.


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Mar 02, 2016 05:37 as a reply to  @ TeamSpeed's post |  #882

Hey that can be good. Do you know if you can tap to focus AND release shutter?
I just watched Andy Rouses' latest vid and the tracking looks really responsive.


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John ­ Sheehy
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Post edited over 3 years ago by John Sheehy.
     
Mar 02, 2016 08:03 |  #883

idkdc wrote in post #17919741 (external link)
Yeah, exactly, it's less about getting the biggest megapixshuls possible and more about matching or cropping correctly for efficiency..

For bandwidth purposes, a low sensor resolution works fastest, but higher resolution sensors would give the highest quality video if the bandwidth were available for it.

The color filters with a Bayer CFA are extremely problematic for binning, so the larger the source tile of original pixels for each output pixel, the less artifacts you'll get. If the tiles have even dimensions, you get color shifts because red and blue are only recorded in alternating lines, like this:

RGRG
GBGB
RGRG
GBGB




  
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bps
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Post edited over 3 years ago by bps. (2 edits in all)
     
Mar 02, 2016 08:08 |  #884

Even though this thread is supposed to be about he Canon 1D X Mark II, the following interview with Mr. Tokura from Canon should give some insight as to Canon's strategy for product development.

And beyond all of the speculation going on here about how Canon will structure their different product lines, there is some decent mentions about the Canon 1D X Mark II and there is a drop dead sexy picture of the upcoming 1D X towards the bottom of the article. It sure is a good-looking camera! :-)

http://www.dpreview.co​m …ncrease-development-speed (external link)
http://www.dpreview.co​m …/0533836703/DSC​F1268.jpeg (external link)

The end of April/early May can't get here soon enough!

Cheers,
Bryan


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idkdc
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Mar 02, 2016 08:20 |  #885

jonneymendoza wrote in post #17920287 (external link)
my point is that they released that 5ds which fills that 3500k mark .

So but making the 5ds the only 3500 camera and then a 6dmk2 that is a 5d4 in disguise would make sense.

do we really need two all rounders? ie a 6d and a 5d? Whats the point on the 5ds range then at the same price point as a 5d but with less features and just more mp?

The 5ds is not an all rounder (studio), the 6d is not an all rounder (entry level). The 5d vs 6d is like the 7d mark ii vs 70d and d500 vs D7200. There is room and demand for both entry level and mid/high end and studio.

Look at D610 (sorta 6d) concurrently existing with D750 (sorta 5d) and D810 (5dsr).


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Official specs: Canon EOS-1D X Mark II
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