Manufacturer description: The 24-70mm F2.8 GM is built with three aspherical elements including a newly developed, extremely precise XA (extreme aspherical) element that reduces aberration and delivers the ultimate resolution throughout the entire zoom range and aperture range, as well as from corner to corner of all image files. Additionally, an ED (Extra-low-Dispersion) glass element and Super ED glass element keep chromatic aberration to a minimum while maximizing resolution and bokeh without any unnatural coloration.
The lens features a 9-bladed aperture that maintains a near circular shape at all settings and is coated with Sony’s original Nano AR coating to suppress reflections and ensure spectacular contrast and clarity.
The new FE24-70mm F2.8 GM lens has a direct drive SSM (Super Sonic wave Motor) focusing system that works with incredible efficiency thanks to a new set of algorithms that positions the lens elements quickly and accurately. The motor is smooth and quiet, making it an ideal choice for shooting both still images as well as movies.
To maximize usability, the lens is dust and moisture resistant and features a compact, streamlined design that includes AF/MF switch as well as focus hold, zoom lock and hood release buttons.