DxOMark tests Canon EOS 70D sensor and lenses
Our friends and collaborators over at DxOMark have been looking at the Canon EOS 70D, and testing out how its innovative 20.2MP 'Dual Pixel AF' image sensor measures up in terms of RAW image quality. They've also looked at how Canon's three currently-available STM lenses score on this latest mid-range SLR, as the start of a larger multi-part lens recommendation article for the camera. Click the links below to read more.
We're not going to assess DxOMark's sensor review of the EOS 70D in detail here, but in essence it agrees pretty well with the observations we've made in our preview coverage of the camera, based on using a pre-production sample. There's no obvious image quality penalty for the 70D's clever sensor design (which uses two photodiodes per pixel to enable fast phase detections autofocus in live view). But equally, there's no huge improvement either.
One consequence of this is that the EOS 70D still lags substantially behind cameras such as the Nikon D7100 and Sony SLT-A77 in terms of dynamic range, especially at base ISO, which results in a much lower DxOMark Sensor headline score. In practical terms, this means that RAW shooters can't dig as much detail out of deep shadows when shooting high contrast scenes. Of course, in return the 70D gains the most sophisticated live view AF system available on any SLR.
DxOMark review: Best lenses for the Canon EOS 70D. Part 1: STM series
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