Dynamic Range -- what it is, what it's good for, and how much you 'need'

Started Oct 17, 2011 | Discussions thread
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Re: Scaling read noise
In reply to FrankyM, Oct 23, 2011

FrankyM wrote:

Can you tell me how read noise does scale in reality (and why)?

The reality is far more complex than simple scaling. All I'm saying is that "equally efficient sensors" means the same QE and that per-pixel read noise and saturation limit scale with pixel area throughout the ISO range.

That said, some sensors are pretty close -- e.g. the 5D2 and E5. I mean, they're so close, one might even think that Olympus copied the 5D2 sensor and just scaled it down.

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