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12-04-2009, 07:59 AM   #1
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ISO question

I'm just curious. What's better. If you've got an object that your taking a picture of in low light, and your tripod mounted, would you be better to use a low ISO and a slow shutter speed, or a higher ISO and a faster shutter speed. I'm just wondering what way would produce less noise.

12-04-2009, 08:05 AM   #2
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Try it and find out.
This way you'll know for sure.
12-04-2009, 09:20 AM   #3
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It should be low ISO with slow shutter speeds.
12-04-2009, 09:52 AM   #4
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Yes, low ISO is lower noise. However, if the object is not stationary, you want a higher shutter speed.

12-04-2009, 12:04 PM   #5
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As above, with the caveat that you have a lot more flexibility with still-life. Anything moving, and you want to freeze that movement, will require a higher shutter speed and therefore a higher sensitivity to allow for that.

You basically have to know what the shutter speed is you're after for the particular shot and choose your aperture and sensitivity accordingly.
12-05-2009, 03:48 AM   #6
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The higher the iso,the noisier and grainier it gets.But like ash says,if you want to freeze the movement best as possible,it will give you the ability to use a faster shutter speed for this.Experiment and eventually you'll work it out.
12-05-2009, 04:28 PM   #7
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QuoteOriginally posted by eccs19 Quote
I'm just curious. What's better. If you've got an object that your taking a picture of in low light, and your tripod mounted, would you be better to use a low ISO and a slow shutter speed, or a higher ISO and a faster shutter speed. I'm just wondering what way would produce less noise.
The more photons the better is what I say.
Low iso also has a larger dynamic range.
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