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Thread started 15 Oct 2011 (Saturday) 01:09
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Shadow Problems

 
crazyman229
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Oct 15, 2011 01:09 |  #1

So i have a 60d With a Canon EF 24-105mm f/4 L IS USM Shot the picture with the flash off camera also just the external flash contributed to the picture...
Shot at Shutter 1/100 32mm ISO-400 F5.6

Now the problem what is with the shadow created by the leg of the elephant. It is very noisy and has green in it also looks horrible. I had to brighten it up so you could even see what i am talking about but in normal exposure you can still see the noise.If i have missed some thing or you need more info i will give it.


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Sdiver2489
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Oct 15, 2011 01:40 |  #2

I don't see anything wrong...you said you brightened it up which will increase noise greatly...perhaps that's making the noise heavier than you would like.


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tzalman
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Oct 15, 2011 04:00 |  #3

The visibility of noise is an inverse function of the signal to noise ratio (S/N). Higher S/N, less visible noise. Low S/N, you see noise. When you photograph against a black background, very little light (S) is coming from the black and this fact has nothing to with whatever ISO is set in the camera. At the same time, some components of the noise (N) are constant because they are caused by the camera's electronics. So if you look for it you will always find some noise in the blacks. And as said above, if you brighten it the noise becomes more visible. The best thing to do - if you want a real black background instead of a noisy dark grey - is to raise your black point, zapping the noise. This will also remove the green cast because all three channels will be equally clipped.


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crazyman229
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Nov 10, 2011 20:46 |  #4

so it worked out that there was something wrong with the monitor it was showing the shadows 1-1.5 stop brighter then the rest of the picture but now it is all good.....




  
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WishfulAvo
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Nov 11, 2011 04:34 |  #5

crazyman229 wrote in post #13383704 (external link)
so it worked out that there was something wrong with the monitor it was showing the shadows 1-1.5 stop brighter then the rest of the picture but now it is all good.....

Haha, Thats annoying! Good it all worked out




  
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Shadow Problems
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