ISO settings

K

kingborris

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Could someone please qualify my understanding of ISO settings on a DSLR?

The higher the ISO setting the greater the sensor's sensitivity to light, but equally, the greater the level of noise and graininess introduced to the image.

So, ideally I'd shoot at the lowest ISO settings I can, where I can still achieve desired exposure at the aperture and shutter speed i want to use? thats assuming i didnt want a noisy, grainy image ;)

does that sound about right? :help:

TIA,

KB
 
pretty much spot on
at least I hope so
that's how I use it!!!!
 
Sounds like a man who's knows ISO's :lol:
 
High ISO = high amplification of the signal from the sensor = more noise.

You get less noise in a high ISO image if it is exposed well or even slightly over exposed. Under exposed will show the noise more.
 
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