The main camera (in the center of the lens bar) has the "50 megapixel" sensor. It is actually 48 megapixels, but each 4 pixel group gets read out or averaged into a single pixel in the image file, so for all intents and purposes this is a 12 megapixel sensor. Pixels are 1.2 um on a 1/1.31 inch (19.39 mm) sensor.
The main lens itself has an 82 degree field of view (24mm equivalent) and is f/1.85
The ultrawide camera is to the side. It has a 12 megapixel sensor with 1.25 um pixels on a 1/2.86 inch (8.88 mm) sensor.
The lens itself has a 114 degree field of view (16mm equivalent) and is f/2.2
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