If you’re lucky enough to have one of the new 11 series iPhones, you have some of the best camera technology ever found in a smartphone. And you of course have the ability to zoom. If you have the iPhone 11 Pro or 11 Pro Max, you have a 2X optical zoom (normal to telephoto – 4X if you zoom from the ultra-wide lens to the telephoto.) This will give you the best quality compared with using digital zoom (which goes to 10X on these phones.)
To use either, just open the Camera app. Select your subject to focus on. Right above the shutter button you will see a horizontal zoom menu. Tap the 0.5X icon to switch to the Ultra-Wide lens, tap the 1.0X icon to use the normal lens and tap the 2X icon to use the two times optical zoom.
You can have more precise and granular control by pressing and holding any icon in the zoom menu. A zoom slider will appear. Use your finger to move along the scale to the right to zoom as far in as possible or to the left to zoom out. When you like your composition just tap the shutter button and you have your photo at the exact amount of zoom you were looking for.