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Old Jan 20, 2005, 1:50 PM   #1
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I just got my D70 and I have heard that most peope

recommend that you DO NOT USER AUTO ISO. I would like to know your thoughts.

Also is AUTO ISO set to ON or OFF as Default????
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Old Jan 20, 2005, 3:33 PM   #2
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I never really trusted Auto ISO in automatic mode.

But...recently iused it for indoor volleyball and got decent result. Instead of having to push the ISO to a high number, i used a fix shutter speed (1/200) with my 50mm lensat F1.8 and let the auto ISO do the job. This way i have kept the noise lower by maximizing the ISO. Lots of shotshad an ISO between 300 and 800.

So i think auto ISO can help in low ligth situation, instead of using a fixed high ISO, you can use Auto ISO to get the lowest ISO possible.
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Old Jan 20, 2005, 3:42 PM   #3
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Morris wrote:
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... you can use Auto ISO to get the lowest ISO possible.
I also heard that the cam will use high iso speeds even if it's not neccessary. So if that's right, AUTO ISO will not keep the ISO at the lowest possible.

I have not tested it myself so far.
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Old Jan 20, 2005, 11:42 PM   #4
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Morris, sounds you could have split the difference set iso 400 shutter priority then been plus/minus one f/ stop. I think you are better off fixing iso and varying other controls low iso low noise.
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Old Jan 22, 2005, 9:45 PM   #5
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Auto ISO is set on as default. The reason it's problematic in use is that the camera's default minimum flash shutter speed is set at a relatively high 1/60th. So in any scene where light levels are low, and you're shooting with flash at max lens aperture, the camera insists on holding shutter at 1/60th while it winds up ISO higher than needed ideally.In many cases, dropping the min shutter option to 1/30s still makes it handholdable for most people, and affords a halving of ISO values for the same given lens aperture.


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