The SEL20F18G is the Sony FE 20mm F1.8 G, a full-frame ultra-wide-angle prime lens for Sony E-mount cameras.It offers a 20mm ultra-wide focal length, making it ideal for landscapes, astrophotography, architecture, interiors, travel, and vlogging where you want a wide field of view. The F1.8 aperture allows strong low-light performance and smooth background blur (bokeh), which is rare for such a wide lens.
As part of Sony’s G series, it delivers high sharpness across the frame, low distortion, minimal flare, and fast, quiet autofocus using XD linear motors. Despite being a professional-grade lens, it is also compact and lightweight (around 373g), making it easy to carry for travel and handheld shooting.