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Old 03-19-2008, 07:27 PM   #13 (permalink)
Macky
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Join Date: Jan 2002
Location: California
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Default Re: My First Set with my new Xti

Quote:
Originally Posted by 97mits3kgtSOHC View Post
so since the iso100 will result in a darker picture set the shutter speed for longer time? but how do i do that again? hold the button and scroll the wheel? the bigger the number the darker? and the smaller the more light in the picture

shuter speed, aperture and ISO speed essentially work together like a balancing act to get the same thing (proper exposure).

think of it this way : to get a properly exposed image, you need to capture as much light in such a way that you expose the sensor with just the right amount (aperture), long enough (shutter speed) to register with the sensor (ISO speed) properly.
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