SmallRig 3667B Full Cage for Sony A7 IV / V / A7S III / A1

SmallRig 3667B Full Cage for Sony A7 IV / V / A7S III / A1 Summary

The SmallRig 3667B Full Cage is a metal camera cage for selected Sony Alpha A7 series cameras and the Sony A1. It provides external protection while supporting accessory mounting and quick transitions between support systems.

The cage uses a triple-point locking system combining a bottom screw, locating pin, and side screw to prevent camera twist during handheld or rig-mounted use. Precision shaping maintains access to camera ports, controls, and the battery compartment without obstruction.

An integrated Arca-Swiss compatible base allows direct mounting to tripods and supported gimbal systems without additional plates. The cage includes multiple threaded mounting points, a NATO rail, and a cold shoe mount for attaching accessories such as monitors, microphones, lights, and handles. A built-in magnetic spanner is stored within the cage for quick adjustments.

SmallRig 3667B Full Cage compatible cameras:

• Sony A7 IV
• Sony A7 V
• Sony A7R IV
• Sony A7R V
• Sony A7S III
• Sony A1

SmallRig 3667B Full Cage for Sony A7 Series Key Features

• Full cage design for select Sony Alpha A7 series and A1 cameras
• Triple-point locking system prevents camera twist and movement
• Integrated Arca-Swiss base supports tripod and gimbal mounting
• NATO rail and cold shoe mount for accessory attachment
• Multiple 1/4”-20 and ARRI 3/8”-16 threaded mounting points
• CNC-machined aluminium alloy construction with low overall weight
• Built-in magnetic spanner stored within the cage
• Compatible with optional HDMI cable clamp for secure connections

Frequently asked questions

Which cameras are compatible with the SmallRig 3667B cage?

It is compatible with the Sony A7 IV, A7 V, A7R V, A7R IV, A7S III, and Sony A1.

Does the cage block access to camera ports or the battery door?

No, the cage is precisely shaped to maintain access to all ports, buttons, and the battery compartment.

How does the anti-twist locking system work?

The camera is secured using a bottom 1/4”-20 screw, a locating pin, and an M2.5 side screw to reduce rotation.

Can the cage be mounted directly to tripods or gimbals?

Yes, the integrated Arca-Swiss compatible base allows direct mounting without additional plates.

Is an HDMI cable clamp included?

The cage supports an optional HDMI cable clamp, which is not included as standard.

What’s in the box

• SmallRig 3667B Full Cage for Sony A7 IV / V / A7S III / A1