An aperture lens refers to the opening in a camera lens that controls the amount of light entering it. It can be adjusted to make the opening larger or smaller, impacting the brightness and depth of field in a photograph. Full definition
On the other side, the Moto G4 Plus is equipped with a 16 - megapixel camera with f / 2.0 aperture lens on its rear panel. (ibtimes.com)
To explain further, a variable aperture lens allows a camera to mechanically adjust its lens opening to control how much light hits its sensor. (mobilesyrup.com)
Its 16MP primary camera has an f / 1.8 aperture lens with optical image stabilization and laser auto focus. (smartphone.ninja)