16–35mm · f/2.8
The Sony 16-35mm F2.8 ZA SSM is a professional-grade ultra-wide zoom with strong central sharpness and constant f/2.8 aperture. Optical weaknesses include high chromatic aberration and mustache-type distortion at 16mm, plus noticeable vignetting. Build quality is high with smooth rings, and the Mark II adds weather sealing. It suits landscape and studio photographers needing a durable, fast ultra-wide, though rivals may offer better edge performance.