Why Does My Phone Need More Than One Camera?

MakeUseOf | 2/12/2019 | Vann Vicente
Coraav (Posted by) Level 3
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Gone are the days where people had to lug around enormous cameras with short battery lives to take high-quality photos. While they can’t beat a dedicated camera, smartphones are versatile, portable, and can take beautiful, high-resolution pictures.

If you’ve bought a new smartphone in the last few years, there’s a good chance that it has two or three (or four!) cameras on the back. What do these additional cameras do? The uses of these cameras vary from phone to phone.

Article - Types - Lenses - Smartphone - Camera

In this article, we’ll be listing down the types of secondary lenses and how they’re making your smartphone camera more powerful.

If you’ve ever been in a camera store, you’ve probably seen the terms “10mm” or “35mm” thrown around to classify lenses or describe how shots are taken. These terms refer to focal length, which is the distance between the camera’s lens and the image sensor.

Simply - Length - Determines - Things - Scene

Simply put, the focal length determines two things: how much it captures of a scene, and how much it magnifies a part of what you see.

A camera with a short focal length allows you to capture a wider image, while a long focal length allows you to magnify details from far away. Lenses for DSLR cameras normally have a range of focal lengths that they can use, such as 18mm-55mm or 9mm-18mm.

Common - Photo - Lenses - Them

5 Common Photo Lenses and When to Use Them

Though there's no photographic rulebook when it comes to focal length and aperture, there are a few best practices to remember.

Ways - Camera - Faraway - Subject - Smartphones

There are two ways that a camera can zoom into a faraway subject. Many smartphones use digital zoom, which is simply enlarging a part of the captured full-resolution image. This often results in a significant loss of detail, especially at long distances.

Dedicated cameras use optical zoom. This method utilizes a telephoto lens, which lets you raise the focal...
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