Canon EOS 70D video AF test: how well does the new sensor-based AF performBy Kevin Carter - Tuesday September 17 2013 Sensor Insight
The Canon EOS 70D is an attractive proposition for both stills photographers and video users. The new Dual Pixel CMOS AF cleverly solves the problem of the redundant viewfinder based phase detection AF system when recording video and neatly avoids the patented trans-missive mirror solution adopted by Sony.
As well as retaining an optical viewfinder, the Dual Pixel CMOS AF sensor with its total of 40 million pixels used for image capture shows a small but palpable increase in lowlight performance and higher levels of sharpness than previous APS-C cameras from the firm.
We observed only a marginal improvement in DR over earlier offerings, and while perhaps not the best in class this may or may not be that significant, depending on the type of photography practiced.
For video enthusiasts, this camera is one of the best choices available on the market currently and at least is a viable option to the entirely likeable and very capable Sony SLT models.