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Old July 11th 09, 08:21 PM posted to rec.photo.digital
Paul Furman
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Default Sony develops back-illuminated CMOS sensor, with twofold sensitivityand low noise

Alfred Molon wrote:
SMS says...
Alfred Molon wrote:
SMS says...

You're right, but remember these are small sensors with a small pixel pitch. A full frame sensor will typically have a SNR of over 35dB, and a pixel pitch 4-5 times larger. A typical professional video camera will have an SNR of over 60db.

Maybe 8dB is an improvement in the consumer market.

An increment of 8dB is an increase by a factor of 2.5.


So it was 12dB, now 20dB?

Very significant
in any sector - both consumer and professional.


That article didn't say "an increment".


It says "Signal-to-noise ratio improvement of +8dB", i.e. 8dB more = an
increment of 8 dB.



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