Key Features:

Professional Heavy-Duty Metal Build:Constructed from precision CNC-machined chrome-plated brass and stainless steel, weighing 210g for maximum durability. Optimized for the professional B4 interface, it ensures a rock-solid, zero-play connection for demanding
production environments.

Ensures Precise Infinity Focus:Meticulously engineered to the exact flange distances of both B4 and E mounts, guaranteeing accurate infinity focus and preserving the optical performance of your broadcast lens.

Compatible with Professional B4 Lenses:Perfectly adapts standard B4 mount broadcast/cine lenses, including models with servo zoom, power aperture, and optical stabilization features (note: auto functions require lens power/internal control).

Extensive Camera Compatibility:Compatible with virtually all E mount cameras, enabling innovative use of professional B4 lenses on E Mount full-frame, Super 35mm, and cinema camera systems like the FX6, FX3, BURANO, and VENICE 2.

Integrates into Professional Workflows:A purely mechanical adapter, it requires manual control of aperture, focus, and zoom. It serves as a crucial bridge for integrating high-quality, cost-effective broadcast lenses into E-mount workflows for multicam
live production, studio work, documentary, and creative filmmaking.

Compatibility

Lenses:Standard B4 mount broadcast/cine ENG lenses (designed for 2/3" image circle).NOT FIT B4 1/2" 

Cameras:All E mount cameras, especially Super 35mm/APS-C models like the FX30, A6700, A6600, A6400, ZV-E10 II, as well as full-frame/cinema models like the A7CR, FX3, FX6, BURANO, and VENICE 2 (with significant cropping/vignetting on full-frame).