The SmallRig 3666B Baseplate is designed to enhance camera stability and mounting flexibility for Sony a7R V and a7 IV mirrorless cameras. Built for handheld, tripod, and rig-based shooting setups, the plate provides a secure mounting platform while maintaining access to essential camera functions and battery compartments.

Featuring an Arca-type compatible design, lightweight aluminum construction, anti-twist positioning, and multiple threaded mounting points, this baseplate supports efficient rig expansion for video production and photography workflows. Suitable for filmmakers, content creators, and hybrid shooters requiring a compact and reliable camera support accessory.