Quote:
Originally Posted by ste2425
carn't believe i never thought to rest it on something 
as for the camera it has no exposure setting, unless they have given it a different name, the settings i can manually change are:
White balance
ISO value
Metering
focus area
Real Time AF
Flash Of-set
theres also a value at the bottom of the screen when viewing a shot before taking it i can change i think it alters the focus and light sensitivity so that mights be the exposure thing.
it reads like this:
F2.8 1/160. I can change both values.
Would any of them be what you was talking about? |
The 1st one that says F is your aperture. It controls how much light the lens lets in. And the bigger the aperture, the more "blurred" things in front or behind what you focussed on become. Wierdly the bigger the aperture, the smaller the number. So F2.6 is a bigger aperture than F11.
The second number is your shutter speed in seconds. The faster the shutter, the less light it lets in. But at slower shutter speeds you start to get camera shake, where things look blurry because of the camera moving while the shutter is open. Basically the longer your lens, the faster the shutter speed needs to be to stop blurring. Or use a tripod.
So to answer your question, using a slower shutter speed will let more light in, which means you can use a lower ISO and get less noise. But you need some way of making your camera not move to do that.
Hope that helps.
EDIT: Some further reading:
http://photo.net/learn/making-photographs/exposure