New Canon on 22nd March?

Started Mar 7, 2013 | Discussions thread
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bobn2
bobn2 Forum Pro • Posts: 42,788
Re: New Canon on 22nd March?

jonas ar wrote:

What have led you to that cocnlusion on the performance of the 24MP Sony APS-C sensor? From what I have seen they perform very similarly provided that the exposure is controlled.

The only really sensible comparison, IMO, is same exposure - otherwise you are comparing apples and oranges. Unfortunately many of the review sites do not set the same exposure (maybe that is what you mean by 'exposure controlled'). The 24MP sensor has the same per-pixel read noise as the 16MP sensor, and the same efficiency, so in the end it suffers from a little more shadow noise. That's the only place where it lacks the 16MP. The read noise scales down with the read transistor, so a fair reading of what Sony has done is use the same read transistor design in the 16 and 24MP pixels. If they had just taken the 16MP design and scaled it proportionately, it would have produced a lower per pixel read noise and higher DR overall.

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Bob

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