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<blockquote data-quote="pforsell" data-source="post: 493099" data-attributes="member: 7240">I am not debating, I am having a good humored chat. But to answer your question, no to ISO 12k8 always, since raising ISO by 1 stop decreases the highlights headroom by 1 stop. Base ISO is usually the best, unless the scene lighting is so low that read noise will dominate shot noise. In these circumstances it is better to reduce read noise judiciously keeping in mind the danger of clipping highlights.Those that agree with that claim bark up the wrong tree. It is the low light that brings out the noise, not the ISO setting. And by the way you have almost proved it in your previous thread. You just haven't realized the full implications yet. Just a fun tidbit, why do you think camera manufacturers would have added a control (ISO) in the camera which increases noise?Depends on the camera. You can do this easily by using an ISOful camera (Not D7k or D2x) by using your standard method of keeping the exposure constant. I could do it too and post the images, but there's always those that will whine about &quot;unfair&quot; or &quot;rigged&quot; setup. Anyway, I'm not into debating but just chatting and I can stop anytime if you feel offended. If I come through as argumentative or terse it is not my intention, but please note that english is only my third language and I am far from fluent and may easily miss nuances that are clear as day to the native speaker.And have a safe journey.</blockquote>

[QUOTE="pforsell, post: 493099, member: 7240"] I am not debating, I am having a good humored chat. But to answer your question, no to ISO 12k8 always, since raising ISO by 1 stop decreases the highlights headroom by 1 stop. Base ISO is usually the best, unless the scene lighting is so low that read noise will dominate shot noise. In these circumstances it is better to reduce read noise judiciously keeping in mind the danger of clipping highlights. Those that agree with that claim bark up the wrong tree. It is the low light that brings out the noise, not the ISO setting. And by the way you have almost proved it in your previous thread. You just haven't realized the full implications yet. Just a fun tidbit, why do you think camera manufacturers would have added a control (ISO) in the camera which [B]increases[/B] noise? Depends on the camera. You can do this easily by using an ISOful camera (Not D7k or D2x) by using your standard method of keeping the exposure constant. I could do it too and post the images, but there's always those that will whine about "unfair" or "rigged" setup. Anyway, I'm not into debating but just chatting and I can stop anytime if you feel offended. If I come through as argumentative or terse it is not my intention, but please note that english is only my third language and I am far from fluent and may easily miss nuances that are clear as day to the native speaker. And have a safe journey. [/QUOTE]

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