D3x vs. 5DII Sensor Only.

Started Feb 22, 2009 | Discussions thread
Michael Anburaj Contributing Member • Posts: 577
Re: Shadow Noise

Hi Bob,

On the other hand, in the shadows, where there are few photons to
have noise, the camera with the lowest read noise excels.

While this makes a lot of sense, I am curious still...

I assume read noise is associated with analog front-end electronics (ADC & everything before it). And these sensors have integrated ADC on them. If yes, then the forum suggests D3x & A900 have the same sensor on them. If that's true as well, then where does this better read noise come from?

Better choice of micro lenses for instance could add some SNR advantage. Reducing noise in circuits other than AFE & providing better isolation may help. What else could influence?

Thanks,
-Mike.

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