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Started Aug 11, 2012 | Discussions thread
vmarks Regular Member • Posts: 146
Re: Acute.

Great Bustard wrote:

However, for some sensors, like the ones Canon uses, the higher ISOs have less

read noise, so the read noise is less. Thus, the overall photo is less noisy for the
higher ISO photo.

Really? Does this mean that (from the perspective of noise only) there is an "optimum" ISO setting dependent on the sensor?

I had always assumed the lowest noise would be achieved at the "native" ISO rating of the sensor. Are some canon sensors rated at a higher native ISO, or is this too simplistic?

Is the use of higher native ISO the reason we're getting so good high-ISO performance from Canon c.f. other manufacturers?


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