Sensor sizes and f stops

Started Jan 25, 2014 | Discussions thread
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Light reaching each pixel
In reply to TTMartin, Jan 26, 2014

But, a larger sensor has more light reaching it. ...

You need to consider the number of photons reaching each pixel during an exposure ( not total area, but individual pixels ).

If I pack a large sensor with so many pixels that it has the same pixel density as the smaller sensor, then the resulting signal to noise ratio ( SNR ) will be the same.

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