October 23, 2014, 04:55:42 AM

Author Topic: Canon EOS-1D X DXOMark Sensor Scores  (Read 33649 times)

elflord

  • 5D Mark III
  • ******
  • Posts: 705
    • View Profile
Re: Canon EOS-1D X DXOMark Sensor Scores
« Reply #120 on: October 16, 2012, 11:50:32 PM »
After elford's excellent description -for which I thank him again - I can accept the increase in DR when downsampling.

I will also accept that Nikon has greater DR but we have to think of it either as a  36Mpixel camera with 13.2 stops DR or a 8 Megapixel camera with 14.4 stops DR (which makes it practically a different camera, otherwise someone would downsample to what 2Mpixels? Wouldn't that increase DR to say ... 15 stops?)

It is NOT a 36Mpixel camera with 14.4 stops DR at max resolution (we cannot have the cake and eat it!)  So if we want to think of D800 for what it is mainly (a 36Mpixel camera) we have to think of it as a 13.2 stop DR camera. (This does not reduce the DR capabilities of D800 of course).

P.S Too much trouble and fights. What is a 1.2 stops difference in DR  between forum members? :o

The intuition is about right though it's really best to think of it as 13.2/36mpx, and then think of 14.4/8mpx as where you'd go if you could extend the DR/resolution tradeoff all the way down to 8mpx. It's useful if you want to compare two cameras with different resolutions

The full story is a bit thornier than that. You can't push the black point more than 14 stops lower than the saturation point, but you do keep getting cleaner shadows as you downsample (e.g. down to or even lower than 8mpx) which means more usable DR

canon rumors FORUM

Re: Canon EOS-1D X DXOMark Sensor Scores
« Reply #120 on: October 16, 2012, 11:50:32 PM »

NormanBates

  • Canon 7D MK II
  • *****
  • Posts: 489
  • www.similaar.com
    • View Profile
    • www.similaar.com
Re: Canon EOS-1D X DXOMark Sensor Scores
« Reply #121 on: October 18, 2012, 09:31:05 AM »

tron

  • 1D X
  • *******
  • Posts: 1862
    • View Profile

tron

  • 1D X
  • *******
  • Posts: 1862
    • View Profile
Re: Canon EOS-1D X DXOMark Sensor Scores
« Reply #123 on: October 18, 2012, 10:25:43 PM »
P.S Too much trouble and fights. What is a 1.2 stops difference in DR  between forum members? :o
we it is  2 stops or even more depending how the read out noise looks in the tested Canon camera.
Ok, then continue fighting  ;D  ;D

Woody

  • Canon 7D MK II
  • *****
  • Posts: 622
    • View Profile
Re: Canon EOS-1D X DXOMark Sensor Scores
« Reply #124 on: October 19, 2012, 03:10:04 AM »
I am surprised it's been more than a week since DXO Lab announced their software support for 1DX and D600 but there has been no official release of their 1DX test results, unlike the D600. Is this because (i) DXOMark do not believe their results and are now re-testing everything (ii) they are blackmailing Canon to give them more monetary support (iii) they are blackmailing Nikon to grant them more support.

 ;D  ;D  ;D

rpt

  • Canon EF 300mm f/2.8L IS II
  • *******
  • Posts: 2219
  • Could not wait for 7D2 so I got the 5D3
    • View Profile
Re: Canon EOS-1D X DXOMark Sensor Scores
« Reply #125 on: October 19, 2012, 04:19:50 AM »
I am surprised it's been more than a week since DXO Lab announced their software support for 1DX and D600 but there has been no official release of their 1DX test results, unlike the D600. Is this because (i) DXOMark do not believe their results and are now re-testing everything (ii) they are blackmailing Canon to give them more monetary support (iii) they are blackmailing Nikon to grant them more support.

 ;D  ;D  ;D
Or all of the above with special focus on #2 and #3...
;)

AmbientLight

  • Canon 7D MK II
  • *****
  • Posts: 492
    • View Profile
Re: Canon EOS-1D X DXOMark Sensor Scores
« Reply #126 on: October 19, 2012, 04:41:18 AM »
From a pure business perspective you sure got a point here  ;).

canon rumors FORUM

Re: Canon EOS-1D X DXOMark Sensor Scores
« Reply #126 on: October 19, 2012, 04:41:18 AM »

rpt

  • Canon EF 300mm f/2.8L IS II
  • *******
  • Posts: 2219
  • Could not wait for 7D2 so I got the 5D3
    • View Profile
Re: Canon EOS-1D X DXOMark Sensor Scores
« Reply #127 on: October 19, 2012, 12:34:09 PM »
From a pure business perspective you sure got a point here  ;).
Shoot! I thought I was being pessimistic...

:) It has been a long time that I have been in software - A REALY LOOOOOOOOOONG time (for me at least...). The phrase "to err is human" did not just spring up. That was a program manager of a software firm may be 4000 or so years back realized that it was "money for nothing, bugs for free"!

canon rumors FORUM

Re: Canon EOS-1D X DXOMark Sensor Scores
« Reply #127 on: October 19, 2012, 12:34:09 PM »