Sony's original G Master portrait prime — reference-grade 85mm f/1.4 with stunning bokeh and ring-drive SSM AF.
The Sony FE 85mm f/1.4 GM was released in 2016 as the G Master portrait prime for the Sony FE full-frame system, representing Sony's highest optical quality tier at 85mm. The XD (Extreme Dynamic) linear motor provides fast, precise autofocus. Eleven rounded aperture blades produce near-circular bokeh shapes at all aperture settings. At 820g and 77mm filter thread it is among the heavier 85mm f/1.4 primes available. Weather sealing is built throughout.
The optical design uses 11 elements in 8 groups. Eleven rounded aperture blades produce circular bokeh. The 77mm filter thread is the Sony G Master standard. At 820g the lens is substantial for a portrait prime. Minimum focus distance of 0.8m. The XD linear motor provides fast, precise AF suited to continuous tracking. f/1.4 maximum aperture. Full electronic communication for IBIS and tracking on Sony A7-series bodies.
The 11-blade aperture is the GM 85mm's defining rendering characteristic: at f/2 or f/2.8 where 7-9 blade designs show polygonal bokeh shapes, the 11-blade design produces near-circular out-of-focus highlights — relevant for specular highlights (streetlights, window reflections) in portrait backgrounds. The XD linear motor enables continuous subject tracking at f/1.4 for candid portrait work. At 820g the lens is heavier than the Batis 85mm f/1.8, but provides one additional stop of maximum aperture.
On the used market the Sony FE 85mm f/1.4 GM is available at premium G Master portrait prime pricing. Condition checks: XD linear motor AF response, 77mm front element for marks, aperture ring consistency, and weather sealing at barrel seams. The Sony FE 85mm f/1.8 provides nearly equivalent background rendering at f/2 at approximately half the weight. Compatible with all Sony FE-mount full-frame and APS-C E-mount bodies.