POV-Ray : Newsgroups : povray.off-topic : Photoshop CS5 : Re: Photoshop CS5 Server Time
4 Sep 2024 15:17:30 EDT (-0400)
  Re: Photoshop CS5  
From: Nicolas Alvarez
Date: 6 May 2010 17:09:19
Message: <4be32fff@news.povray.org>
"Fredrik Eriksson" <fe79}--at--{yahoo}--dot--{com> wrote:
> On Thu, 06 May 2010 00:24:07 +0200, Darren New <dne### [at] sanrrcom> wrote:
>>
>> Second, if you're talking about the ISO setting rather than the
>> exposure, that's about how much you pre-bias the electrons in the
>> sensor. Basically, you load up each pixel of the sensor with some
>> electrons, and if light kicks out an electron, you add one to the
>> intensity of the light there. Adding more electrons makes it easier to
>> get kicked out.
> 
> No, there is no pre-bias; that is not how the sensors work. The ISO
> setting only affects amplification of the analogue sensor output.

There you go. So if you have the raw sensor output, you can change the ISO 
setting after the fact?


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