What is a periscope camera on a smartphone? How it differs from telephoto lens

Android and Apple smartphone owners have become big fans of the periscope camera and today we are up to tell you how this tiny element works and differs from the telephoto lens. To begin with, a periscope camera is a combination of prism or mirrors that refract, reflect, and redirect light before it falls on the camera.

It further results in digital zoom for up to 120x on certain smartphones. In case you want to identify the periscope lens on your phone, then directly look at its shape, It appears in a rectangular opening unlike telephoto, which has a round shape.

How does periscope camera on a smartphone differ from telephoto lens?

In terms of difference, the Telephoto lens requires a mechanism of convex and concave lenses. Here, the former resides outside and converges light whereas the latter diverges light back into parallel beams. Besides, users can expect a 2x to 3.2x zoom depending on the complexity of the setup.

However, the periscope is independent and may or may not require any such mechanics to achieve optical zoom. Also, you may get results between 3x and 10x based on the complexity. In case you want longer zooms, then periscope is the right option.

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