Zeiss's manual-focus Planar 50mm f/2 for Sony FE — premium optics with mechanical aperture ring and weather sealing.
The ZEISS Loxia 50mm f/2 Planar T* is a manual-focus prime for Sony FE full-frame bodies, based on the classic symmetrical Planar optical design. The lens has no autofocus motor — all focusing is manual with electronic contacts for EXIF recording and focus peaking. The aperture ring can be de-clicked with an included tool-operated screw for smooth video aperture pulls. At 320g and 52mm filter thread it is compact.
The optical design uses 6 elements in 4 groups (classic symmetrical Planar formula). Ten rounded aperture blades produce circular bokeh across a wide range of apertures. The 52mm filter thread is compact. At 320g the lens is lightweight. Minimum focus distance of 0.45m. Manual focus only — no AF motor. Electronic contacts for EXIF data and in-camera focus confirmation. De-clickable aperture ring via tool-operated screw.
The Loxia Planar's 6/4 formula is a modern incarnation of the symmetrical Planar design: the symmetric element arrangement provides intrinsic distortion correction and controlled aberrations that favour the natural rendering associated with Planar-formula lenses. On Sony FE bodies, manual focus is supported by focus peaking and magnified MF assist, making precise manual control practical in the EVF. The de-click mechanism enables smooth video exposure adjustments without click detents audible on-microphone.
On the used market the ZEISS Loxia 50mm f/2 Planar is available at mid-range manual-focus Sony FE prime pricing. Condition checks: manual focus ring smoothness through full range, de-click screw mechanism, 52mm front element for marks, and electronic contact function. Manual focus only — no AF. Compatible with all Sony FE-mount full-frame and APS-C E-mount bodies.