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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 30 Aug 2013 (Friday) 13:38
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6D vs 5Dc vs 550D noise tests

 
JoYork
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Aug 30, 2013 13:38 |  #1

Hi all,

Here are the results of a quick noise test I did this evening. I started out trying to make it as fair as possible, but there were a few things against which make this a truly apples to apples comparison.

I set the 6d up on a tripod and used the 50mm f/1.4 lens at f/4. I put the camera in AV mode with Evaluative metering, set a 2 second timer and shot 9 images starting at ISO 100 and doubling the ISO each time.

I then swapped the 6d for the 5Dc and used the same tripod, same lens, f/4 and AV mode with Evaluative metering. By the time I got to ISO 400 it was apparent that each camera had evaulated the scene slightly differently (at ISO 400 the 6D was using a shutter speed of 1/30 whereas the 5Dc was using 1/25. I shot several frames at the camera's recommended shutter speed as well as at the same exposure used by the 6D.

I have also included the 550D in case anyone's interested how that performed. I ended up using the 17-40mm lens at 29mm to provide a similar framing of the shots. This isn't a lens test, it's just a quick look at how each camera handles noise.

What is very apparent from these tests is how important it is to expose to the right. I have included a couple of examples from the 5Dc and 550D of shots which have been taken with 1 stop exposure compensation in camera and then 1 stop underexposed in Lightroom to bring the exposure back in line again. As you can see, this produces a much cleaner image.

I am limited by this forum as to how many posts I can make in one post so please bear with me as I make multiple contributions to this thread adding all the images.

All images were imported into Lightroom, cropped and exported with no other modifications done to them, except for those flagged as ETTR.

First up are the ISO 100 shots from each camera:

6D, 1/8

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_1269.jpg



5Dc 1/6

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_3142.jpg



550D 1/5

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_8534.jpg



ISO 200 images:

6D, 1/15

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_1270.jpg


5Dc, 1/13

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_3143.jpg


550D, 1/10

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_8535.jpg

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JoYork
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Aug 30, 2013 13:41 |  #2

ISO 400 images:

6D, 1/30

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_1271.jpg


5Dc, 1/25

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_3144.jpg



550D, 1/20


IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_8536.jpg



ISO 800 images:

6D, 1/60

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_1272.jpg



5Dc, 1/50

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_3147.jpg



550D, 1/40

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_8539.jpg

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Aug 30, 2013 13:45 |  #3

ISO 1600 images:


6D, 1/125

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_1273.jpg



5Dc, 1/100

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_3148.jpg

I also included a photo from the 5Dc with -1/3 exposure comp to bring it in line with the 6D exposure:

5Dc, 1/125

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_3149.jpg



550D, 1/80

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_8540.jpg

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Aug 30, 2013 13:50 |  #4

ISO 3200 images:

6D, 1/250

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_1274.jpg


At this point we have exceeded the 5Dc's native ISO abilities so I have included a shot in H mode, which boosts the ISO value in the camera's software:

5Dc, 1/200

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_3151.jpg


550D, 1/125 (exactly HALF the reported 6D shutter speed)

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_8542.jpg

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Aug 30, 2013 13:53 |  #5

ISO 6400 images:

6D, 1/500

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_1275.jpg


550D, 1/250 (half the 6D's shutter speed)

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_8543.jpg



ISO 12,800 photo:


6D, 1/1000

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_1276.jpg


ISO 25,600 photo:


6D, 1/2,000

(DUPLICATE IMAGE)

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Aug 30, 2013 13:57 |  #6

These are a very small part of a much larger scene:

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_1269-2.jpg

I also took some photos where I shot 1 stop over, then pulled it back in Lightroom. Here are the results:

5Dc, 1/50, ISO 1600, E/C +1

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_3152.jpg


5Dc, 1/100, ISO 1600, no E/C

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_3148.jpg

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Aug 30, 2013 13:58 |  #7

550D, ISO 6400, 1/125, E/C +1

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_8544.jpg


550D, ISO 6400, 1/250, no E/C

IMAGE: https://dl.dropboxusercontent.com/u/41858/iso%20shootout/IMG_8543.jpg

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Aug 30, 2013 14:04 |  #8

I'm particularly interested to see if there's a difference in how each camera handles skin tones so I will conduct another test over the next few days once I've persuaded a willing volunteer to pose for me :)


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Aug 30, 2013 14:09 |  #9

Thanks for doing these tests. It's always good to have comparisons like this to help others make decisions.

Why did you use Av node instead of M, which would have kept the exposure between the 5D and 6D equal?




  
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Aug 30, 2013 15:04 as a reply to  @ frugivore's post |  #10

This was very interesting to see.
Thanks for taking time to do this.

I think that there is not that much of a difference between 6D and 5DC at low ISOs.
There were small differences in exposure and image sizes which could explain some of the differences in sharpness and color rendition.

At higher ISOs 6D pulls ahead as expected, but 5DC is not bad at all at its maximum ISO 3200. 6D of course expands further and allows different use scenarios in low light situations you may encounter.

550D grain became very obvious and some detail was lost at the same time.

These were my quick observations from these pictures.


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Aug 30, 2013 15:20 |  #11

Making sure the exposures were identical and also making sure the crops are the same proportion would help. When I take the 550 crops and resize them down 84.5% or so to match what the resolution should be for the 5D, they don't match. It makes it difficult to really compare the noise levels at 100%.

Any chance you could do a test run at 3200 where all 3 are in manual mode with the same exposures pushed to the right a bit? The histograms will indeed be different, but more in intensity than to the right or left.


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Sep 01, 2013 15:34 |  #12

Thjanks for the 6D and 5D comparisons......




  
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Sep 01, 2013 16:01 |  #13

I love my 5Dc, my one regret is that I didn't buy one new on the day they were released.
There is nothing in these results that diminishes my total admiration of this technological marvel. :D
What noise it does produce is invariably totally authentic and embraceable.


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Sep 01, 2013 16:19 |  #14

I really want to see some natural light portrait shots between these 3 :)




  
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6D vs 5Dc vs 550D noise tests
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