What is the equivalent lens in millimeters of the oneplus 12’s periscope telephoto camera?

Question: What is the equivalent lens in millimeters of the oneplus 12’s periscope telephoto camera?

One of the most impressive features of the OnePlus 12 is its periscope telephoto camera, which allows for up to 10x optical zoom and 100x digital zoom. But how does this camera work, and what is the equivalent lens in millimeters of this camera?

A periscope telephoto camera uses a prism to reflect light at a 90-degree angle, and then passes it through a series of lenses that are arranged horizontally inside the phone. This way, the camera can achieve a longer focal length without increasing the thickness of the phone.

The focal length of a lens is the distance between the lens and the image sensor, and it determines how much magnification the lens can provide. The longer the focal length, the more zoomed in the image will be. However, the focal length also depends on the size of the image sensor, which varies among different phones and cameras.

To compare the focal length of different cameras, we need to use a common reference point, which is usually the 35mm film format. This format has a standard image sensor size of 36 x 24 mm, and it is widely used in professional photography. To find the equivalent lens in millimeters of a camera with a different sensor size, we need to multiply its focal length by a crop factor, which is the ratio of the diagonal lengths of the two sensors.

According to OnePlus, the periscope telephoto camera of the OnePlus 12 has a focal length of 240 mm and a crop factor of 6.54. This means that its equivalent lens in millimeters is 240 x 6.54 = 1569.6 mm. This is an extremely long lens that would be very bulky and expensive in a conventional camera. For comparison, a typical telephoto lens for a DSLR camera has an equivalent focal length of around 300 mm.

The periscope telephoto camera of the OnePlus 12 is therefore a remarkable achievement that enables users to capture stunning photos from far away. However, it also has some limitations, such as lower light sensitivity, narrower aperture, and higher distortion than other cameras. Therefore, it is important to use this camera wisely and in appropriate situations.

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