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06/28/2004 08:39:19 PM · #1 |
Now Ive heard that CCDs are something like a hundred times more sensitive to light than film, but is there a way to bypass the whole ISO and use the CCDs full potential. I mean especially with the D70. Shouldnt there be some way to make the ISO 100. Or even lower?
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06/28/2004 09:17:09 PM · #2 |
No matter your ISO setting, you are using the CCD's potential. It's just how you trade off sensitivity for noise. Think of ISO as "turning up the volume" to amplify a faint signal. You get more signal, but also more noise, thus lower S/N ratio.
Nikon's philosophy seems to be that below ISO 200, there is little to be gained in dynamic range, so the lower settings are not necessary. I do think there are reasons that this is short-sighted; there are plenty of times when low ISO can be a significant benefit.
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06/28/2004 09:19:02 PM · #3 |
Originally posted by kirbic:
No matter your ISO setting, you are using the CCD's potential. It's just how you trade off sensitivity for noise. Think of ISO as "turning up the volume" to amplify a faint signal. You get more signal, but also more noise, thus lower S/N ratio.
Nikon's philosophy seems to be that below ISO 200, there is little to be gained in dynamic range, so the lower settings are not necessary. I do think there are reasons that this is short-sighted; there are plenty of times when low ISO can be a significant benefit. |
Very true,I wish my Rebel has ISO 25 :-( |
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