Canon EOS 1D X - ISO test + RAW files

[awinphoto]

the IQ looks to be very promising.  Even more so then with the 5D mkIII...

So says the one who bought the 1dx over the 5d3 

[JR]

the IQ looks to be very promising.  Even more so then with the 5D mkIII...

So says the one who bought the 1dx over the 5d3 

yeah!   

Wishfull thinking for double the investment 

[awinphoto]

Then again i'm half surprised letlightin hasn't downloaded and analyzed... done his ever so scientific tests and started whining about the DR like he did with the 5d3 first initial test samples were leaked...  so it must be promising 

[awinphoto]

the IQ looks to be very promising.  Even more so then with the 5D mkIII...

So says the one who bought the 1dx over the 5d3 

yeah!   

Wishfull thinking for double the investment 

Cant blame ya there... I probably would be the same way if the roles were reversed haha 

[Wiki Tango]

If their tests run positively, maybe we can rename them to 1DxO   
SCNR

[Wilmark]

Do you have any direct comparison of ISO with 7d?

Why would you be comparing ISO with one of the lamest pro body cameras in terms of ISO and IQ. If its one thing the 7D was NOT is a good noise performer.

[dilbert]

So why is DxO useful?

If someone says that the 1DX is as good at 51200 as the 7D is at 3200, I can look up the 7D graphs and get an idea of how it would compare with other full frame cameras.

In this case, if 1DX@51200 = 7D@3200 then DxO tells me the 1DX should be 1 to 2 stops better at high ISO (using the SNR graphs) than the D4/D800E. Now if that holds true and is present right up/down the curve, then the 1DX represents not only a new sensor but newer sensor technology than is in the 5D3.

[pedro]

In this case, if 1DX@51200 = 7D@3200 then DxO tells me the 1DX should be 1 to 2 stops better at high ISO (using the SNR graphs) than the D4/D800E. Now if that holds true and is present right up/down the curve, then the 1DX represents not only a new sensor but newer sensor technology than is in the 5D3.

I would like to see an ISO 51200 real world comparison to the 5D3: same location, same lens, same exposure value...

[heptagon]

At high iso-values the cameras are pretty much physically limited with a noise value identical for downscaled images. So there are no wonders to be expected. The 1Dx will be marginally better than the 5D3 compared at pixel level but not when downscaled.

[marekjoz]

Do you have any direct comparison of ISO with 7d?

Why would you be comparing ISO with one of the lamest pro body cameras in terms of ISO and IQ. If its one thing the 7D was NOT is a good noise performer.

It was so much written here about it that I'm not going to argue
7d is still recommended by Canon for sports photography. When you crop FF to APS-C size, the noise of 7d is not so awful anymore. The more interesting here for me is comparison of the 18MP flagship FF for sports to the dated 18MP flagship APS-C for sports.

[Canon5Dtips]

I would like to see an ISO 51200 real world comparison to the 5D3: same location, same lens, same exposure value...

I would like to see it as well Maybe in near future I can agree some cooperation with Canon, who knows, ..
Only people can help me get there

[V8Beast]

ISO 12,800 on the 1Dx looks similar to ISO 6,400 on my 5D3. I very rarely push the ISO past 1,600, so I'm hardly the best judge on the matter. The noise grain definitely looks different on the 1Dx, though.

[pedro]

I would like to see an ISO 51200 real world comparison to the 5D3: same location, same lens, same exposure value...

I would like to see it as well Maybe in near future I can agree some cooperation with Canon, who knows, ..
Only people can help me get there

Go for it, Canon5Dtips. You're the person to do so. Get it rented for a weekend and stroll down Broadway, Beale Street or whatever. I'll stay tuned! Well, if ISO 12800 on the 1Dx according to V8Beast is like ISO 6400 on the 5D3 that makes one stop which is needed for a PJ workhorse. So my decision to go for the 5D3 within one year or so (saving up for a nice WA and expecting a slight price drop) seems to be quite a good thing. I couldn't afford a 1Dx anyway. But as an enthusiast photo amateur the 5D3 at almost half of the price will help me to do anything I am into photographywise: avialable light and low light high iso photography-"robert frank style" (people, street, inhouse scenes), nightphotography, some landscape. Cheers and thanks, Pedro.

[chrysek]

ISO 12,800 on the 1Dx looks similar to ISO 6,400 on my 5D3. I very rarely push the ISO past 1,600, so I'm hardly the best judge on the matter. The noise grain definitely looks different on the 1Dx, though.

How different?

[V8Beast]

How different?

The 5D3's noise looks more grainy, while the 1Dx's noise, at least in the sample set posted in this thread, looks blotchier, for lack of a better term. I don't know that one type of noise is preferable to the other, just different.

It's hardly a conclusive observation, so I wouldn't put much weight into it. It's merely the opinion of one 5D3 owner who rarely shoots past ISO 1,600 comparing it to a camera (1Dx) he doesn't even own