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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 29 Aug 2013 (Thursday) 02:54
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DxO assess the Canon 70D's sensor performance

 
lsquare
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Aug 29, 2013 02:54 |  #1

http://www.dxomark.com …el-CMOS-AF-sensor-perform (external link)

Summary: Canon barely made much improvement to its APS-C sensor except for the small increase in megapixels. The Nikon D7100 and Sony A77 outperforms the Canon 70D.

Considering how big Canon is, I can't believe the gap between Canon's sensors and its competitors are growing. How is this possible? The Canon 70D's successor will not be released until 2015/2016, which means that its APS-C sensors will have essentially stagnated for 5-6 years.

I guess the answer is pretty obvious here. If someone doesn't need the features of the 70D (i.e. Dual Pixel AF), then there's no point to upgrade from the 60D since the 70D barely outperforms the 60D's sensor.




  
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SpartanWarrior
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Aug 29, 2013 05:18 |  #2

Do people actually wait for DxO Mark to buy a camera??? actually in real world use they are very close except DR, but then again who cares use your GND filters.


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JoYork
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Aug 29, 2013 05:49 |  #3

I just compared the Canon 6d with the Nikon D800 on DXO.

According to DXO, the 6d scores 2340 ISO points whereas the D800 scores 2853.

As far as I can tell, the 6d has slightly better ISO performance, not worse, so how are DXO calculating the scores?


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kin2son
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Aug 29, 2013 05:55 |  #4
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JoYork wrote in post #16249662 (external link)
I just compared the Canon 6d with the Nikon D800 on DXO.

According to DXO, the 6d scores 2340 ISO points whereas the D800 scores 2853.

As far as I can tell, the 6d has slightly better ISO performance, not worse, so how are DXO calculating the scores?

Um maybe it's calculaing the overall sensor performance....not just ISO?

For starter, DR on D800 owns the 6D by a country mile.


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whothafunk
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Aug 29, 2013 05:58 |  #5

if my memory serves me well, werent there many discussions about DxO's weird (not fair) calculating and supposedly Nikon preferences?


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Refill
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Aug 29, 2013 06:02 |  #6

lsquare wrote in post #16249496 (external link)
Considering how big Canon is, I can't believe the gap between Canon's sensors and its competitors are growing. How is this possible? The Canon 70D's successor will not be released until 2015/2016, which means that its APS-C sensors will have essentially stagnated for 5-6 years.

They have other priorities than cameras. More and more companies produce and sell cameras, so prices and margins are too small for Canon. They are now investing a lot of money in other activities, less dependent of hardware.




  
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JoYork
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Aug 29, 2013 06:04 |  #7

kin2son wrote in post #16249668 (external link)
Um maybe it's calculaing the overall sensor performance....not just ISO?

For starter, DR on D800 owns the 6D by a country mile.

Which is why I specifically mentioned the ISO points:

http://www.dxomark.com …2)/792%7C0/(bra​nd2)/Nikon (external link)


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Keyan
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Aug 29, 2013 07:08 |  #8

DXO Mark also claims the 70-200L 2.8 IS is sharper than the II version, which is demonstrably untrue.

Honestly, I don't care, sensor performance is just one of many factors in a camera.


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Pit
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Aug 29, 2013 07:20 |  #9

I'd trust my cat to give me a better unbiased opinions on cameras and lenses then DXOMARK.


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Aug 29, 2013 07:32 |  #10

anyone know how to put a spread sheet on here
this is a chart I made based on dxo scores

I was hoping the 70D was better in low light

Low ISO Rating Sports LI Sports Rank Dynamic Range Landscape DRL Rank Color Depth Portrait CDP Rank Rank Total Rank Rank Total Ave Score Total Score Total Rank Price?
Canon 1Dx 2786 1 11.8 ​5 23.8 3 9.00 1 3.00 6​3.46 1 6800
Canon 6D 2340 2 12.1 1​ 23.8 3 6.00 2 2.00 59​.3 2 2100
Canon 5D Mark III 2293 3 11.7 6 24 1​ 10.00 3 3.33 58.63 3 ​3500
Canon 5D Mark II 1815 4 11.9 4 23.7 ​5 13.00 4 4.33 53.75 4​ 2200
Canon 1Ds Mark III 1663 5 12 2 24 1 8​.00 5 2.67 52.63 5 710​0
Canon 1Ds Mark II 1480 6 11.3 14 23.3​ 6 26.00 6 8.67 49.4 6​ 6950
Canon 1D Mark IV 1320 8 12 2 22.8 8 ​18.00 8 6.00 48 7 5900
Canon 5D 1368 7 11.1 2​0 22.9 7 34.00 7 11.33​ 47.68 8 2000
Canon 1D Mark III 1078 9 11.7 6 22.7​ 9 24.00 9 8.00 45.18 ​9 4050
Canon 1D Mark II 1003 10 11.1 20 22.​3 11 41.00 10 13.67 43​.43 10 1700
Canon 70D 926 13 11.6 ​9 22.5 10 32.00 10.67​ 43.36 11 1200
Canon 1D Mark II N 975 11 11.2 18 22.3 ​11 40.00 11 13.33 43.2​5 12 6000
Canon 1Ds 954 12 11 22 21.8 21 ​55.00 12 18.33 42.34 1​3 2700
Canon 7D 854 14 11.7 6​ 22 17 37.00 13 12.33 ​42.24 14 1975
Canon 60D 813 17 11.5 ​11 22.2 13 41.00 16 13​.67 41.83 15 1050
Canon 550 807 18 11.6 ​9 22 17 44.00 17 14.67​ 41.67 16 850
Cannon EOS M 827 16 11.2 18 22.1 ​14 48.00 15 16.00 41.5​7 17 1200
Canon Rebel T3i 793 19 11.5 11 22.​1 14 44.00 18 14.67 41​.53 18 800
Canon 100D 843 15 11.3​ 14 21.8 21 50.00 14 1​6.67 41.53 19 650
Canon Rebel T3 755 21 11 22 21.9 1​9 62.00 20 20.67 40.45​ 20 700
Canon Rebel T2i 784 20 11.5 11 21.​1 25 56.00 19 18.67 40​.44 21 750
Canon 40D 703 24 11.3 ​14 22.1 14 52.00 23 17​.33 40.43 22
Canon 10D 703 25 11.3 ​14 21.8 21 60.00 24 20​.00 40.13 23
Canon 20D 721 23 11 22​ 21.9 17 62.00 22 20.6​7 40.11 24
Canon 30D 736 22 10.8 ​25 21.5 24 71.00 21 23​.67 39.66 25 900
http://www.dxomark.com …ngs/(type)/usec​ase_sports (external link)


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TeamSpeed
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Aug 29, 2013 07:38 |  #11

lsquare wrote in post #16249496 (external link)
http://www.dxomark.com …el-CMOS-AF-sensor-perform (external link)

Summary: Canon barely made much improvement to its APS-C sensor except for the small increase in megapixels. The Nikon D7100 and Sony A77 outperforms the Canon 70D.

Considering how big Canon is, I can't believe the gap between Canon's sensors and its competitors are growing. How is this possible? The Canon 70D's successor will not be released until 2015/2016, which means that its APS-C sensors will have essentially stagnated for 5-6 years.

I guess the answer is pretty obvious here. If someone doesn't need the features of the 70D (i.e. Dual Pixel AF), then there's no point to upgrade from the 60D since the 70D barely outperforms the 60D's sensor.

That is exactly my conclusion in a different thread where I pulled DPReview's raw files from the previous 18mpx crop and compared to the 70D raw. The images are sharper, but have more luminescent noise. That is actually to be expected anyways though, because you lose detail as you pull back lum. noise.

However it is still a good thing, because this is a brand-new sensor. So Canon was able to make a new sensor that has 40M sites on it, go a bit larger overall in resolution, and didn't hurt anything in the process.


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jrbdmb
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Aug 29, 2013 07:39 |  #12

I don't understand Dxo's lens scores whatsoever ... but their camera sensor scores seem to make sense.

Looking at early RAWs seems to agree with Dxo's findings - the 70D is a *bit* better than the 60D and 7D, but no dramatic improvements. Some have also seen less banding in low ISO noise with the 70D, but unless you are routinely pulling up shadows several stops this isn't a very meaningful improvement.

(What TeamSpeak said. :) )


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JoYork
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Aug 29, 2013 08:25 |  #13

According to DXO, the Sony RX1 has better ISO performance than the Canon 6d, and some THREE TIMES better performance than the 7d!

http://www.dxomark.com …3)/619%7C0/(bra​nd3)/Canon (external link)


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Hogloff
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Aug 29, 2013 08:54 |  #14
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whothafunk wrote in post #16249670 (external link)
if my memory serves me well, werent there many discussions about DxO's weird (not fair) calculating and supposedly Nikon preferences?

Only on Canon boards. Their overall score is useless, but their detailed tests are very revealing.




  
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Aug 29, 2013 09:11 |  #15

JoYork wrote in post #16249662 (external link)
I just compared the Canon 6d with the Nikon D800 on DXO.

According to DXO, the 6d scores 2340 ISO points whereas the D800 scores 2853.

As far as I can tell, the 6d has slightly better ISO performance, not worse, so how are DXO calculating the scores?

IIRC DxO determines the ISO scores by finding at what ISO value the dynamic range drops below some predefined value. Since that value is fixed across cameras and not based on the individual camera's DR at base ISO, it makes the Nikon and Sony sensors look better than they are (or the Canon sensors worse than they are.)


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DxO assess the Canon 70D's sensor performance
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