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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 31, 2013 02:37 |  #121

TeamSpeed wrote in post #16254582 (external link)
The 70D will be a killer when it comes to live view and movie recording, in no other way does it really seem all that revolutionary, as we have seen all its features on other cameras. The only absolute new thing added to this camera is its 40mpx sensor that can AF across 80% of the sensor when the mirror is up, everything else has already debuted elsewhere. It indeed is a very nice step up from the 60D however, that is sure, but not necessarily in the IQ department, but certainly in the features and function.

I'm not so sure if I agree with your understanding of the 70D's sensor. Base on my understanding of the Dual Pixel AF, you're not really getting a 40MP sensor where half of it is dedicated to PDAF. If that's the case, then each individual pixel will be very small (smaller than even the 60D's pixels). I could be wrong, but I don't think that's what DPR said in its explanation of the technology.




  
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lsquare
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Aug 31, 2013 02:38 |  #122

EL_PIC wrote in post #16254669 (external link)
Lead, Follow, or Get Out of the Way ..
Canon used to Lead.
Now they Follow.
Perhaps Get Out of the Way is next.

Well, to be fair to Canon, Dual Pixel AF is a pretty innovating feature. It's not like Canon have stopped innovating altogether.




  
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lsquare
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Aug 31, 2013 02:40 |  #123

Mornnb wrote in post #16255278 (external link)
The lens team is leading. The sensor team appears to be asleep. However saying that, Canon is still ahead in high ISO noise. It's the dynamic range where no progress has been made. Nikon has a massive two stop advantage.

That's because Canon's sensors have less pixels. I'm not convinced that Nikon's high ISO algorithms is inferior to Canon's.




  
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sega62
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Aug 31, 2013 03:21 |  #124

NeonStar wrote in post #16255329 (external link)
Why not just do HDR?

In a sense you got it right, hdr does wonders.....as long as you dont overkill it.
And I got some real good pics that shows great DR with my 5D2
Some of my friends has nikon, and we all make great pics, if you know how to make it happen, in the end, you cant really tell the difference, unless you really want to pixel peak,
Lightroom does wonders too,
I could buy any stuff fron nikon, but gee, the feel is not for me, and some of the colors and feel is not as cool as canon, maybe someday......
What I really need is a greater AF, faster...specially when you want to pick up the camera and shoot in a fast situation.
I really like the 7d, but it was a little noisy to my taste, I hope the 70d will be better




  
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Osiriz
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Aug 31, 2013 05:16 |  #125

SpartanWarrior wrote in post #16249611 (external link)
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.

Yeah, because a GND-filter can be used for all situations and scenes. :rolleyes:




  
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SpartanWarrior
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Aug 31, 2013 05:21 |  #126

sega62 wrote in post #16255513 (external link)
In a sense you got it right, hdr does wonders.....as long as you dont overkill it.
And I got some real good pics that shows great DR with my 5D2
Some of my friends has nikon, and we all make great pics, if you know how to make it happen, in the end, you cant really tell the difference, unless you really want to pixel peak,
Lightroom does wonders too,
I could buy any stuff fron nikon, but gee, the feel is not for me, and some of the colors and feel is not as cool as canon, maybe someday......
What I really need is a greater AF, faster...specially when you want to pick up the camera and shoot in a fast situation.
I really like the 7d, but it was a little noisy to my taste, I hope the 70d will be better

I have seen pictures from a D800 with bracket shots were much better than going into ACR or Lightroom and trying to bring up underexposed images.


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Aug 31, 2013 08:47 |  #127

lsquare wrote in post #16255485 (external link)
I just went through CR and one of the authors said his experience don't always agrees with what DxO says. lol! It's so stupid to even state that because while someone may not agree with DxO's assessment, that doesn't mean their numbers/assessment are inaccurate.

I don't have an opinion on the relevance of DxO's data, but there is another aspect to the argument - does their test method accurately represent real-world situations? I have no reason to doubt DxO's data, but the real question is does their data matter?

Having asked this, what does the panel say? Is this a reasonable test method? Reasonable measurements of the image? Image conditions taken under controlled circumstances to allow repeatable and comparable results?


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maximus_73
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Aug 31, 2013 09:08 |  #128

When was the last time you saw dxomark gave Canon sensor high marks vs Nikon?...... never


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lsquare
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Aug 31, 2013 09:46 |  #129

iowajim wrote in post #16255941 (external link)
I don't have an opinion on the relevance of DxO's data, but there is another aspect to the argument - does their test method accurately represent real-world situations? I have no reason to doubt DxO's data, but the real question is does their data matter?

Having asked this, what does the panel say? Is this a reasonable test method? Reasonable measurements of the image? Image conditions taken under controlled circumstances to allow repeatable and comparable results?

Why don't you go and search it up for yourself if you don't believe what's already been addressed in the past?

Of course their data matter. In terms of DR, we know what the sensor is capable of. That's important stuff to know just like how some people value the importance of how long does it take a car to go from 0-60mph. If you don't care, then that's fine, but plenty of other people do. Just like how some people care whether their car takes 5 seconds to go from 0-60 while others are happy with a car that takes 9 seconds to go from 0-60.




  
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lsquare
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Aug 31, 2013 09:47 |  #130

maximus_73 wrote in post #16255981 (external link)
When was the last time you saw dxomark gave Canon sensor high marks vs Nikon?...... never

Are you implying that there's a bias against Canon?




  
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TeamSpeed
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Aug 31, 2013 10:14 |  #131

lsquare wrote in post #16255489 (external link)
I'm not so sure if I agree with your understanding of the 70D's sensor. Base on my understanding of the Dual Pixel AF, you're not really getting a 40MP sensor where half of it is dedicated to PDAF. If that's the case, then each individual pixel will be very small (smaller than even the 60D's pixels). I could be wrong, but I don't think that's what DPR said in its explanation of the technology.

I never said that 1/2 is dedicated to AF... I said that the sensor design was new, and its main advantage currently is its PDAF across most of the sensor now instead of dedicated AF points.

Also, there is a neat multi-quote feature, where you just click the +" button for all the replies you are about to make, then add your comments in between. I am sure it will even be better in the new forum software based on the whitepaper Pekka has issued.


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burnet44
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Aug 31, 2013 10:21 |  #132

buddie of mine got one
shot a game last night
this is real world shooting

https://www.facebook.c​om …73741837.527386​739&type=1 (external link)


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Aug 31, 2013 10:27 |  #133

I would never use facebook as a medium for showing what a camera can do, they resize and recompress the images to fit their storage needs. Is he a member here on POTN and if so, could he just share full size links with intact exif, etc?


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Aug 31, 2013 10:35 |  #134

cool
I was just using it as an example
havent seen anyone post low light fast action pics

most seem to be landscape

just trying to add real world info
only place Ive found any so far


Canon 70D Gripped, Canon 1DII, 7D2 Canon gripped 70-200 2.8 ISM II, Canon 50 1.8, Sigma 17-50 2.8, Canon 400 5.6 on loan, Canon 1.4 TC, Canon 550 EX flash
C and C welcome, Brutality Encouraged, Help Always Welcome Editing OK
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Aug 31, 2013 10:38 |  #135

lsquare wrote in post #16256046 (external link)
Why don't you go and search it up for yourself if you don't believe what's already been addressed in the past?

Thing is, I haven't seen a clear criticism of DxO's methods in this thread, just some anecdotal ramblings at best, and hot-heads poking each other at its worst. I was trying to encourage the discussion to go in a new direction.


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