第一眼看上去佳能70D在外观上与前代产品60D相差不大，但仔细观察就会发现其在整体线条和按键、接口等方面都进行了重新设计。 佳能70D机身整体 ...

The technology is a development of Canon's existing dual-pixel autofocus sensor technology. Launched in 2013 in the EOS 70D, DPAF improves autofocus speed when using contrast-detect AF.