While “optical zoom” is usually used within the context of “zooming in” on a subject, any increase in focal length that uses optics (rather than software, or digital zoom) is considered “optical zoom.” Appleįor example, the iPhone 13 only has a wide (26mm equivalent) and an ultra-wide (13mm equivalent). Some iPhones, particularly the iPhone Pro models, have all three lenses. You may also have a telephoto (zoom) lens or an ultra-wide.
This is great for capturing a slightly wider field of view than what you can see with the human eye. All iPhones have a basic wide-angle lens, which has a 35mm focal length equivalent of about 26mm. Take a look at the back of your iPhone and you’ll probably see more than one lens.
