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Re: rail pictures. net rejected this photo ,..my comment is

Posted by aem7ac on Mon Nov 7 14:47:21 2005, in response to Re: rail pictures. net rejected this photo ,..my comment is, posted by Terrapin Station on Mon Nov 7 14:43:22 2005.

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You're wrong in saying that we are wrong.

OK, sorry. You (plural) are spewing the bullshit that digital camera manufacturers come up with to try to make their cameras more marketable to people who are used to film terminologys. And I'm wrong in that I don't believe in that bullcrap and choose to understand digital technology as it is rather than its emulation of the film technology that came before.

As such, when you increase the ISO on a digital camera,

There is no such thing as an ISO rating for a digital camera. Yes, most digital cameras allow you adjust that setting, but as you said, it's really just an emulation, and it's a way to calibrate the color curves and shutter times used internally by the digital camera to calculate your final picture.

the final image produced by the camera has an increase in what is called graininess by digital photographers. And yes, it is also called noise.

Oh, I see. So even though the "noise" in the photo arises from a completely different mechanism, it's still called "grainyness". I will adopt this terminology in future even though I know that it's wrong. Now we speak the same language. :)

AEM7AC

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