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Old Jun 14, 2003, 10:30 AM   #1
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Default ISO vs. F-Stop vs. Shutter Speed?


I'm using the Nikon Coolpix 4500. I know that I can choose the ISO, shutter speed, and F-stop, or a combination of them...

Normally, I shoot in the P-mode, which chooses the shutter and F-stop for me. I have been letting it choose ISO, too.

Should I choose the ISO so my shutter is faster? Should I choose the shutter and let it choose the other two?

I've been told a fast shutter is most important, but would like to hear your ideas of how to achieve that, or is there something better?


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Old Jun 14, 2003, 11:48 AM   #2
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I shoot in aperture-mode most of the time. This way it's easy to control the depth of field (you may also, this way, learn where your lens is perform best (sharpest)).

I only turn up ISO, when light is low and I'm not able to use my flash - and of course, sometimes, when I need that extra speed.
But with most camera, it's important to remember that it will coast you to turn up ISO - you pay in NOISE. How much noise is different to each camera/film.

If you need some basic knowledge about shutter/aperture - you may want to go to my website:


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Old Jun 14, 2003, 1:44 PM   #3
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Those are three different things which all effect the picture:

Shutter speed can freeze a fast moving picture or blur it.
F-stop can have everything in front of and behind the subject sharp or blurred.
Higher ISO increases the sensitivity of the CCD at the cost of noise.

Suggest you read the free online "book" at http://www.photocourse.com It's the best source of the basics I've yet to come accross.
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