BetterPhoto Q&A
Category: Explain Digital Resolution

Photography Question 

Michael Rogers
 

Digital Cameras and ISO Settings


What's the difference between low and high ISO settings? What would be an appropiate ISO setting for shooting an action shot at sunset with a minimum f stop of 5.6?


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December 04, 2003

 

Michael Rogers
 


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December 04, 2003

 

Ryan Chai
  Hey Michael,
I would give ISO 400 a shot, but it really depends on how fast your subject is moving. The difference between low and high ISO settings on your digital camera is similar to film. More noise in digital more grain in film. The reason there is more grain/noise is the pixels become more sensitve to light by clustering them. You loose resolution by doing this but you can gain more freedom with your exposure. Some high end digital cameras like the EOS 1-Ds can have ISO 800 set and still enlarge the print to 16 x 20 without noticable problems.


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December 05, 2003

 

Michael Rogers
  Thanks Ryan.


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December 05, 2003

 
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