I am trying to utilize the Camera Connect App. with my new MKIV. I am able to connect the camera without any issue and download photos and change settings. My issue seems to be Auto Focus. Are you not supposed to be able to select a focus point on your iPhone with your finger and the camera should automatically focus on that spot? If so, this doesn't seem to work for me. The only way to focus is to either use the Manual Focus Option OR go into options and select the AF Button to appear and then use it to force the camera to Focus. In Live View you simply press the area you want to focus on, I would expect the same to be true if pressing an area on the iPhone screen, but this doesn't seem to work?
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I also tried it with my iPad using the same 10.0.1 iOS and it yielded the same result. If I select the Video button, and click an area on the screen using my finger, the camera does focus as expected. However, as originally posted, once I switch back to the Still Picture mode, I cannot focus on any part of the image by selecting an area with my finger.