Zeiss's ultra-wide Loxia for Sony FE — 21mm f/2.8 with manual focus and weather sealing.
The Zeiss Loxia 21mm f/2.8 is the widest prime in the Loxia manual-focus range for Sony FE mount. The Distagon formula provides ultra-wide 21mm coverage with Zeiss T* coating and the Loxia series' characteristic weather sealing.
Optically very good — the Distagon formula handles 21mm well with good edge performance. T* coating for flare control. Manual focus with smooth precision helicoid. The 21mm provides dramatic wide perspectives. De-clickable aperture for video.
Sony FE mount with 52mm filter thread — compact for 21mm. Approximately 394g. Weather-sealed. Electronic EXIF contacts. OLED focus distance display. De-clickable aperture. The widest Loxia — 91° coverage.
Available used at mid-range to professional prices. The Batis 18mm f/2.8 is wider with AF. The Loxia appeals to manual-focus enthusiasts. For Sony FE photographers wanting Zeiss ultra-wide quality with the manual focus experience.