Sony has unveiled its thirty-fourth full-frame E-mount lens, the FE 20mm f/1.8 G.
The new 20mm f/1.8 G measures in a 2.90 by 3.33 inches (73.5 x 84.7 millimeters) and weighs 13.2 ounces (373 grams). It has a small form factor given its ultra-wide frame of view and f/1.8 aperture, but has enough weight to it that makes it feel solid in the hand. The exterior controls of the lens include a focus ring, a marked aperture ring with click on-off toggle, a customizable focus hold button, and a AF/MF switch. The front of the lens accepts 67mm filters.
Inside, this is the first non G Master lens to have an XD linear focus motor designed for speed and precision while tracking subjects and for quiet operation when recording video. The optical design incorporates two Advanced Asperic elements and three ED elements, however it does not have an XA element which continues to be used only in the G Master line. The lens has a circular 9-bladed aperture. Minimum focusing distance is only 7.5 inches for a maximum magnification of 0.20x.