Canon EOS R5 II hands-on: Nifty eye-tracking autofocus and reduced overheating problems

As it teased earlier, Canon has launched the R5 II, a successor to the powerful but imperfect EOS R5. With a new 45-megapixel backside-illuminated (BSI) stacked sensor, it not only has superior specs for video, shooting speeds and more, but also adds advanced features like eye-controlled AF. The R5 II was launched alongside Canon's new flagship, the EOS R1, which I've covered in a separate post. With the new R5, Canon has mostly dealt with the original's primary problem: overheating while shooting video. To see what's different and try out some of the new features, I spent some time with an R5 II pre-production camera in Phoenix, Arizona. The R5 II's body is largely the same as before, but there are a couple of key changes.