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Archive 2014 · Does this noise look right from a 6D?

  
 
Paul Tessier
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p.2 #1 · p.2 #1 · Does this noise look right from a 6D?


Also the second shot, though lit much better, seems to be a touch back focused. The sharpness appears to me to be on the ear, hair and back shoulder of the boy. It is hard to say why with one image.


Oct 10, 2014 at 06:52 AM
Deborah Kolt
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p.2 #2 · p.2 #2 · Does this noise look right from a 6D?


As shown in the histogram, it is significantly underexposed, which increases the noise. The softness is from a shutter speed that is too slow. 1/180 is much too slow to freeze action; you should aim for 1/500 minimum, even with these young athletes. Raise the ISO to solve both problems.

Make sure you have your white balance as close as possible in camera. You can tweak it in Lightroom, but it will affect exposure. Also, if the pink cast is intermittent, not constant, it is from cycling. The power output in the magenta cycle is lower than the others, so those frames will usually be underexposed. Overexposing slightly will help compensate. You can pull the overexposure back in the other frames.



Oct 11, 2014 at 05:53 PM
alundeb
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p.2 #3 · p.2 #3 · Does this noise look right from a 6D?


Deborah Kolt wrote:
As shown in the histogram, it is significantly underexposed, which increases the noise. The softness is from a shutter speed that is too slow. 1/180 is much too slow to freeze action; you should aim for 1/500 minimum, even with these young athletes. Raise the ISO to solve both problems.



Raising the ISO will only solve the problem with motion blur. While there is almost always going to be some motion blur in shots like this, and some benefit from using a faster shutter speed, I disagree that it is the main reason for the softness here, though.

Regarding noise, Rising the ISO will not solve any problems. The noise problem with an underexposed image is almost exaclty the same as using a higher ISO and exposing higher up on the histogram. The photometric exposure will be the same in both cases. As long as we don't get more light in, we will not get less midtone noise at these ISO values.

In addition to that, raising the ISO to get a better looking histogram will not give a better shutter speed. If you raise the ISO both to get a better looking histogram and a faster shutter speed, you have to raise the ISO two stops and actually get more noise.



Oct 13, 2014 at 04:16 AM
WestFalcon
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p.2 #4 · p.2 #4 · Does this noise look right from a 6D?


ISO 1600 should be easy for this camera 6D,,,,,I shot this one at ISO 10,000(6D) on Canon 70-300L and this made a nice 8x10




ISO 10,000 on 6D made a good 8x19




Oct 13, 2014 at 06:53 AM
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