Sony's cinema power zoom — same as ID 1213, possible duplicate of the FE PZ 28-135mm f/4 G OSS.
The Sony FE 28-135mm f/4 G PZ OSS is Sony's professional cinema power zoom for full-frame E-mount, covering 28-135mm at constant f/4 with servo-driven smooth zoom control designed specifically for professional video production work.
Optically very good — G-series quality with constant f/4 maintaining consistent exposure during zoom transitions. Power zoom with variable speed servo control enables cinematic zoom movements impossible with manual zoom rings. OSS stabilisation built in.
Sony FE mount with 95mm filter thread — very large diameter. Approximately 1215g — heavy but expected for cinema zoom specification. Weather-sealed dust and moisture resistant construction. Internal zoom design means barrel length stays constant throughout zooming.
Available used at professional prices. Originally designed for Sony FS5 and FS7 cinema cameras — the servo zoom makes it ideal for broadcast-style operation. The 95mm filter thread and 1215g weight are significant practical considerations for rig building.