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SmallRig 3667B Full Cage for Sony A7 IV / V / A7S III / A1
Product Code: 6359965M
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The SmallRig 3667B Full Cage for Sony A7 IV / V / A7S III / A1 provides protection, accessory mounting and quick transitions between supports for both handheld and rig-mounted use.
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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
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Condition guide
Our used products are subject to wear and tear in comparison to brand new products. This also applies to accessories that are supplied with the camera including batteries which may have a lower optimum performance level/life expectancy.
- Like New – The equipment is in a condition as if you have just bought it from the manufacturer. The item is still considered to be ‘Like New’ even without the original packaging and accessories. The product has been fully tested and is in perfect working order. Lenses are optically clear. There may be light dust present that will not effect the imagery.
- Excellent – The equipment should be close to being ‘Like New’ but there may be some small cosmetic blemishes that lower its grade. The product has been fully tested and is in perfect excellent order.
- Cameras – Should have no marks on the LCD screen
- Lenses – Should have no marks on the elements and optically clear. There may be light dust present that will not effect the imagery.
- Very Good – The equipment may have some slight cosmetic wear to the paintwork and cosmetic blemishes with only light signs of use and the product has been fully tested and is in great working order.
- Cameras – The LCD screen may have small signs of wear that does not affect its display
- Lenses – The mount of the lens will start to show signs of wear
- Good – The equipment is showing more obvious signs of cosmetic wear and blemishes, but the product has been fully tested and is in great working order.
- Cameras – LCD screen may have scratches or wear that is starting to affect the display.
- Lenses – May have slight dust inside that does not affect images. The mount shows signs of use.
- Well Used – The equipment will show significant signs of wear. The paintwork will be coming away in large areas exposing the metal work, but the product has been fully tested and is in great working order.
- Cameras – LCD screen is heavily worn either by de-lamination or has scratches to it. Rubber grips are starting to come away from the body.
- Lenses – The lens has dust inside that may affect images. The rubber zoom/focus ring is coming away from the barrel of the lens.
*All of our used items are listed with the accessories that are included. If they are not listed, then they will not be supplied at the point of purchase.
Peace of mind with our 6 month warranty
This product has been thoroughly tested by our team of photographers and we are happy to give a 6 month warranty as a result. The number of tests depends on the individual product but we are confident in this product having tested all the major functions. Anything that isn’t as you would expect, we then make a note of and show this in the condition notes on the page.
So you can be confident you are buying a great piece of kit that’s been looked after by a fellow photographer and seen many extraordinary sights, tested by our team of photographers and now looking forward to being set free to capture more great images!
