What is a periscope lens and what does it mean for the next iPhone?

The smartphone world moves fast. New advancements occur with every generation, and cameras are no exception. One of the most exciting improvements to smartphone cameras is their ability to zoom in further without clarity loss. That’s largely thanks to periscope lenses, which allow more optical zoom from small cameras than we ever thought possible. What are these periscope lenses, how do they work, and what do they mean for the next iPhone? Let’s dig in and find out.