All About... Quad Bayer. It's no PureView...

One of the interesting trends in phone imaging in the last couple of years has been the rise of 48MP 'Quad Bayer' sensors, trumping even the Nokia 808 PureView and Lumia 1020 pixel counts. But what exactly is 'Quad Bayer' and exactly how much sacrifice is involved in using pixels in blocks of four of the same 'colour'? Linked below is an interesting GSM Arena article on the subject which acts as a good primer and also dampens expectations in terms of purity and zoom capability.

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