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FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
Thread started 07 Nov 2011 (Monday) 19:55
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ISO setting in 40D for good results

 
LudwigVB
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Nov 07, 2011 19:55 |  #1

With my 40D I have not really noticed any difference in picture quality between 100, 200 and 400 ISO. I therefore tend to set it to 400 ISO for almost all situations (unless I need it to be even faster). I appreciate the benefit of being able to use faster shutter speeds, so as to minimize the effects of camera shake and subject movement, which might result in a wasted shot at lower speeds. Does anyone else feel that way? Am I missing something by not utilizing ISO 100-200?




  
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Overread
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Nov 07, 2011 20:15 |  #2

It honestly depends a lot upon what you shoot and the conditions you're shooting in.

People shooting in studios with fully controlled lighting will likely never want to leave the cameras base ISO value; whilst those shooting action, sports, wildlife might well be pushing 400, 800 or higher depending on the lighting, to ensure that they get a good enough shutter speed.

Myself I'd say use an ISO as high as your comfortable with as a starting point and then review you settings - increase the ISO if needed, but also if you're getting crazy fast shutter speeds (for example) in a situation that does not call for them then by all means slip the ISO down a notch.


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LudwigVB
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Nov 08, 2011 00:31 |  #3

Thanks for that. Actually, I can think of a couple of cases where ISO would need to be lowered: first, when needing slow shutter speeds to blur movement (typical example is for a waterfall); second, to have a shutter speed low enough to use flash fill in harsh sunlight at midday, causing deep shadows under people's noses and chins.




  
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Stickman
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Nov 08, 2011 01:24 |  #4

If you can't tell the difference, its good enough for your needs.


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bohdank
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Nov 08, 2011 06:44 |  #5

What he said.


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DStanic
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Nov 08, 2011 06:56 |  #6

I don't think twice about using 400, If i go outside I usually turn it down to 200 and go from there. The 40D is great up to 1600 and 3200 is there if you need to get the shot.


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ISO setting in 40D for good results
FORUMS Canon Cameras, Lenses & Accessories Canon EOS Digital Cameras 
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