It achieves this by using a longer lens, which can extend out from the phone, or by using a shorter lens with a higher magnification factor. As I mentioned earlier, a regular telephoto camera has a longer focal length than the primary camera and can capture images of objects that are farther away without losing detail or image quality. The main difference between a periscope camera and a regular telephoto camera in a smartphone is in their physical design and their zoom capabilities. Why Do I Need Two Different Zoom Cameras in a Smartphone? ![]() Of course, it can go further than that but it will come at the cost of image quality as it would have relied on digital zoom to go up to 100x magnification. In the case of the Samsung Galaxy S23 Ultra, it has a 230mm focal length and can zoom in on distant subjects with 10x optical zoom. Periscope telephoto cameras are commonly found in high-end smartphones that require advanced camera features. This allows the camera to achieve a longer focal length and greater zoom capabilities, without adding bulk to the smartphone. ![]() Instead of using a long lens that extends out from the phone, the periscope telephoto camera uses a set of small lenses and mirrors arranged perpendicular to the main camera sensor. A periscope camera, otherwise known as a periscope telephoto camera, is a specialized type of telephoto camera that uses a periscope-like arrangement of lenses and mirrors to achieve a longer focal length without increasing the thickness of the phone.
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