SmallRig Cage for Sony Alpha 7 III / Alpha 7R III / Alpha 9 - SmallRig

The SmallRig 2918 Light Cage is specially designed for the Sony A7 III, A7R III and A9 system came...

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Wex Photo VideoSmallRig 2918 Camera Cage for Sony A7 III A7R III A9 - Aluminum - Black
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£51.00
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Product Information

Full details

The SmallRig 2918 Light Cage is an essential accessory for videographers and photographers using Sony A7 III, A7R III, or A9 cameras who require a stable platform for mounting external gear. This lightweight aluminum cage provides a secure, anti-twist foundation that preserves full access to camera controls and ports, though it adds a slight increase to the overall profile and weight of your camera setup.

All features

BrandSmallRig

Extended Product Information

FAQs

Does this cage block the flip-out screen?

No, the cage is precision-engineered to maintain full articulation of the Sony A7/A9 LCD screen.

Can I use this with a battery grip?

No, this cage is designed for the camera body without a battery grip attached.

Is the screwdriver magnetic?

Yes, it is held in place by a magnet at the bottom of the cage for quick access and secure storage.

Does this fit the A7 IV?

No, this model is specifically tailored for the dimensions of the A7 III, A7R III, and A9 series.

What accessories are compatible with the ARRI mounts?

Any accessory with ARRI-style locating pins, such as the SmallRig 2165 top handle or 2115 magic arm, will lock into these mounts.

Troubleshooting

Camera feels loose or wobbles inside the cage.

Ensure both the 1/4"-20 bottom screw and the M2.5 anti-twist screw at the strap eyelet are fully tightened using the built-in screwdriver.

Cannot access the battery door.

The cage is designed for access; ensure the cage is properly aligned and not shifted toward the battery compartment during initial mounting.

Pros and Cons

Pros

  • Extremely lightweight aluminum construction at only 167.2g
  • Anti-twist design ensures maximum stability for high-end gear
  • Maintains unobstructed access to all essential camera ports and controls
  • Built-in screwdriver is highly convenient for on-the-fly rigging
  • Comprehensive mounting points including ARRI-style locating holes

Cons

  • Slightly increases the camera's footprint for storage in smaller bags
  • M2.5 screw requires careful alignment during the initial installation
  • No built-in cable management beyond compatibility with optional clamps

Setup, Compatibility & Care

To install the cage, align the camera body with the frame and secure the 1/4"-20 screw into the tripod mount hole at the base. To engage the anti-twist feature, align the M2.5 screw with the camera's strap eyelet and tighten it securely using the provided built-in driver. The cage is fully compatible with the SmallRig HDMI Cable Clamp 3104, which is recommended to prevent port damage. Maintenance is minimal; simply wipe the aluminum frame with a dry cloth periodically to remove dust or moisture. Ensure that the M2.5 screw is fully backed out before attempting to insert or remove the camera to prevent scratching the camera body.

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