Since then it's been adopted in one form or another by most manufacturers, with arguably its most successful implementation coming in Nikon's 1 System mirrorless models. On-chip phase detection is nothing new - we first saw it in the Fujifilm F300EXR back in 2010. This means that in principle they are all capable of phase detection autofocus in live view and movie mode. It offers 20.2MP resolution, but uses a 'Dual Pixel CMOS AF' design in which every single pixel is split into two separately-readable photodiodes, facing left and right.
But on the inside it sports an entirely new sensor that is, potentially, revolutionary. It borrows many of the best bits from Canon's existing SLRs, including the autofocus sensor from the EOS 7D, the fully articulated touchscreen from the EOS 700D (Rebel T5i), and built-in Wi-Fi from the EOS 6D. The EOS 70D is a mid-range SLR for enthusiast photographers that from the outside looks like a sensible, indeed desirable upgrade to the EOS 60D. But since then Canon's APS-C cameras have all sported variants on the same basic sensor design, to the extent that you could be forgiven for wondering what on earth their engineers were doing all day. Almost every new EOS model came with an increase in resolution and high ISO range, and when the EOS 7D appeared in late 2009, the company had progressed from 3MP to 18MP, and ISO 1600 to ISO 12800, in just over nine years.
During the early days of digital SLRs, Canon was pretty much the undisputed leader in CMOS image sensor technology.
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