what does ISO, Aperture, Shutterspeed do ?

Question by Somekidwithasianeyes: what does ISO, Aperture, Shutterspeed do ?
I have nikond3100
how can i apply them correctly ?
when should i use high or low ISO, aperture, shutterspeed ?

Best answer:

Answer by klah
This site has all the information you’ll need.

http://digital-photography-school.com/learning-exposure-in-digital-photography

Know better? Leave your own answer in the comments!

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