According to an investor’s note by the analyst, he claims that the iPhone 15 is expected to utilize a folding lens camera design, also known as a periscope camera. Traditional cameras rely on light beamed onto a sensor, but with a periscope camera, it still relies on light, but instead of the light directly beaming onto the sensor, it’s passed through a prism first.
The main reason why smartphones would utilize a periscope camera system is because smartphones are too thin. Unlike a traditional camera where the lens and body are pretty big, there is no need for a periscope system to bounce light through a prism as there is enough space. But since smartphones are thin, a periscope system is essentially a workaround.
Ultimately, this is said to allow for much further zoom capabilities that don’t rely on digital zoom (which is essentially cropping an image). Apple’s iPhone zoom capabilities aren’t exactly the best right now, but a periscope system could potentially allow Apple to address that. In any case, we’re still two years away before anything can truly be confirmed, so do treat this report with a healthy dose of skepticism for now.