Pressing it once instantly brings up the camera launch screen, letting you fine-tune the shot. A second touch will take the photo
From there, it gets a little less intuitive. While doing a hands-on test of the technology at Apple’s campus in Cupertino, California, it took time to get the hang of some of the button’s other functions.
Beyond pressing down to take a shot or start a video, you can maintain your finger’s contact with the button and double-tap lightly to toggle through camera options. You can also adjust the zoom level or — depending on the mode you’ve selected — change other settings by sliding the finger across the button.
This part didn’t always go smoothly. A number of people testing the feature, as well as some Apple staff, struggled to activate the mode toggle the first time.
There are some other subtle changes to the iPhone lineup. The Pro versions now have slightly larger screen sizes, checking in at 6.
