(Source:Unplash)
The most popular choice for the third camera is a wide-angle lens. It widens the frame capturing more details in a single frame.
Wide angle lenses generally have a focal length that is shorter than the focal length on a normal lens.
It is popularly used to capture cityscapes, landscapes and architecture.
On Samsung phones, it can be found a toggle near the base of the screen where you can choose between a smaller frame — displayed as two trees — or a wider frame — displayed as three trees.
On some other phones, it’s a swipe to the left or right. The remainder normally have a toggle on top of the screen to widen the frame.
Though most companies use a depth sensor for the bokeh effect, it can also be brought out using wide angle lenses.