Sony FE 20mm f / 1.8 G lens - SEL20F18G
Presenting an ultra-wide field of vision, the Sony FE 20 mm f / 1.8 G is an elegant and wide-eyed lens that is characterized by its portability, advanced optical design and intuitive operation. The optical design incorporates a pair of aspherical elements and three extra-low dispersion elements to greatly reduce a variety of aberrations and distortions. A Nano AR coating has also been applied to further reduce reflections and surface flashes to improve contrast when working in bright, backlit conditions. For the benefit of optics, this lens also has a dual XD Linear Motor system that is fast and quiet, and also provides more sensitive control for manual focus operation. The lens also has a sealed design against dust and moisture, along with a fluorine coating, to withstand shooting in inclement conditions.
The ultra-wide main lens is designed for mirrorless cameras with full-frame Sony E-mount, but can also be used with APS-C models where it provides an equivalent focal length of 30mm.
The maximum bright aperture of f / 1.8 adapts to difficult lighting conditions and helps maintain a relatively compact form factor.
Two AA (Advanced Aspherical) elements help to greatly reduce distortion and spherical aberrations to accurately represent scenes with a high degree of sharpness.
Three extra-low dispersion elements reduce color stripes and chromatic aberrations to improve clarity and color accuracy.
A Nano AR coating has been applied to minimize surface reflections, flashes and phantom images to increase contrast and color reproduction under intense lighting conditions.
The dual XD linear motor system provides fast, quiet and precise autofocus performance and also contributes to a more natural and intuitive manual focus control. An AF / MF switch is located on the lens body for tactile control over this setting.
Customizable focus retention buttons are present on the lens body for intuitive touch control and quick access to selected settings.
The physical opening ring can be clicked for a smooth and silent opening change for the benefit of video applications.
The sealed design against dust and moisture makes it possible to work better in inclement conditions and rubber control rings benefit handling in cooler temperatures.
The fluorine-coated front element resists dust, moisture and fingerprints and is easy to clean.
The nine-blade rounded diaphragm contributes to a pleasant bokeh quality when selective focusing techniques are employed.