Camera and Photos
You'll use the Camera app to take photos and videos with your iPhone. It's designed to work closely with the Photos app, which lets you view, organize, and edit the media you've captured.
You can access Camera quickly from the lock screen. Just swipe left and the app will open instantly—there's no need to unlock your device first.
Use the pinch gesture to zoom in and out when taking a photo. However, keep in mind that the iPhone uses a digital zoom instead of an optical zoom lens (like you'd find on a larger camera). The digital zoom attempts to simulate an optical zoom. As a result, the image quality will become lower as you zoom in.
However, the iPhone 7 Plus has two cameras, one of which has a telephoto lens. This means you can zoom in with the 7 Plus and not have to worry so much about losing quality.
Rotate the iPhone to change the camera orientation from Portrait to Landscape.
Tap the Flip Camera button in the bottom-right corner to switch between the front- and rear-facing cameras. You can use the front-facing camera to take a photo of yourself. You'll also use the front-facing camera for video conferencing apps like FaceTime.
You can also use the Camera app to record video. To do this, swipe to Video, then tap the Record button.
Press the Home button and the Sleep/Wake button at the same time to take a screenshot. This will take a picture of whatever is currently displayed on your iPhone's screen.