The iPhone 7 Plus is the first iPhone with two cameras on the back and the first iPhone with optical zoom. This allows you to zoom in on an object like a kid, a pet or a game without degrading the quality of the photo.
Technically the iPhone 7 Plus zoom is just switching to the lens that is already zoomed in more, but the effect is still the same – you are closer to your subject. Here’s how to use the iPhone 7 Plus zoom to get closer to your subject.
Open the iPhone 7 Plus camera app either by tapping on the camera app on your home screen or swiping in from the right on the lock screen. Once you are in the camera app look for the 1X on screen button. It’s in the middle of the bottom edge in portrait or in the middle of the right side of the screen in landscape.
Tap on the 1X on screen button to quickly jump to a 2X zoom. This is an optical zoom and does not change the quality of your photo. It’s the same as getting twice as close using your iPhone 7. Tap again to zoom back out to 1X.
You can also tap and hold on 1X or 2X and then slide your finger to the left to zoom in and to the right to zoom out. You can zoom in up to 10X, but anything past 2X is a digital zoom or software zoom.
The iPhone 7 Plus zoom also allows you to pinch to zoom, just like on the iPhone 7 and older iPhones. This is the same as cropping an image so you end up with lower overall quality for your photo.
It’s always better to get closer to the subject than to use the software zoom, but sometimes you cannot get any closer. In that case the software zoom is handy.
Above you’ll see a similar photo shot at 1X, 2X and 10X zoom on the iPhone 7 Plus. Notice that the photo quality is the same in the first two photos, but changes with the last photo. Source: gottabemobile