iPhone 3 Cameras
iPhone 3 Cameras

The multi-camera setup on smartphones, especially the iPhone, has become a focal point (pun intended) of mobile photography evolution. But why three cameras? Let’s delve into the rationale behind Apple’s design choice and the practical applications of a triple-camera system.

1. A Brief Overview

Triple-camera systems on iPhones began with the iPhone 11 Pro and iPhone 11 Pro Max. While dual-camera systems provided significant photography improvements, the addition of a third lens further expanded the iPhone’s photographic capabilities.

2. Wide-Angle Lens: The Standard Shot

The primary camera, often referred to as the wide-angle lens, captures standard photos that we’re most accustomed to. It offers a balance between field of view and detail, suitable for everyday photography.

  • Purpose: General photography, from portraits to landscapes.
  • Field of View: Typically between 70° to 80°.

3. Ultra Wide-Angle Lens: Capture More of the Scene

The ultra-wide lens is a more recent addition and is all about expanding the field of view.

  • Purpose: Capturing expansive landscapes, tight interior spaces, or any scenario where you want to fit more into the frame.
  • Field of View: Can be upwards of 120°, offering a “fish-eye” perspective without significant distortion.

4. Telephoto Lens: Getting Closer Without Moving

Telephoto lenses on smartphones are designed to get you closer to distant subjects without physically moving closer.

  • Purpose: Portraits with blurred backgrounds (bokeh effect), zooming in on distant subjects, and achieving better detail in close-up shots.
  • Optical Zoom: iPhones with a telephoto lens typically provide 2x optical zoom, meaning you can zoom in without losing image quality.

5. Versatility in Photography

The combination of these three lenses offers users a versatile photography experience. With just a swipe, you can switch between different focal lengths, ensuring you capture the perfect shot regardless of the situation.

6. Enhancing Computational Photography

Having multiple lenses also allows the iPhone to gather more data about a scene. This data, combined with Apple’s software, powers features like Night mode, Deep Fusion, and Smart HDR, resulting in clearer, more detailed, and better-lit photos.

7. Augmented Reality (AR) and Depth Sensing

Multiple cameras allow for better depth sensing. By understanding the depth and layout of a scene, the iPhone can provide more immersive and accurate Augmented Reality experiences.


The three-camera setup on the iPhone isn’t just a marketing gimmick; it’s a carefully considered design decision aimed at enhancing versatility, improving image quality, and providing tools for both casual and serious photographers. As technology advances, we can only anticipate further improvements and innovations in smartphone photography.

Eric Chan

Hi! I’m Eric and I work on the knowledge base at GadgetMates.com.  You can see some of my writings about technology, cellphone repair, and computer repair here.

When I’m not writing about tech I’m playing with my dog or hanging out with my girlfriend.

Shoot me a message at ericchan@gadgetmates.com if you want to see a topic discussed or have a correction on something I’ve written.

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