Question: what is f/2.2 in phone camera?
Answer: An f/2.2 smartphone camera actually only provides a depth of field equivalent to an f/13 or f/14 aperture on a full frame camera. It only produces a small amount of blur. ... The Samsung Galaxy S9 was the first to introduce Dual Aperture technology. You can pick between f/1.5 and f/2.4 on a single lens.