SmallRig 3639 Half Camera Cage for Sony Alpha 7 IV/Alpha 7S III/Alpha 1/Alpha 7R IV

SKU: SR3639 MFR: 3639
$39.99
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Key Features

  • Enhance your Sony Alpha with this lightweight SmallRig half camera cage!
  • Maintain easy access to your camera's ports with the cage's open design.
  • Secure your camera: features a locking side plate for added stability.
  • Mount accessories easily using multiple 1/4"-20 & ARRI 3/8"-16 threads.
  • Craft precise shots with this durable, form-fitting aluminum alloy cage.
  • Weighing only 4oz, this cage adds minimal bulk to your camera setup.
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Questions & Answers

ROBERT R : Would this work on the A7RV as well?
Shopper : Why Did You Choose This?SOMA G : I liked that it was a half cage but the ports where still accessibleMichael N : Prefer a half cage to not interfere with camera grip. SmallRig full cage is form fitting but, because it is tight against the camera, the mounting holes would require very short mounting screws so as to not dig into the camera body. Too risky!BRAD N : I didn't want a full cage

Reviews about this item

Review Summary

2025-07-16T05:49:03

Rated 3 out of 5

Good, but not great.

I like the integrated adjustment tool that magnetically attaches to the bottom of the cage - very clever design. However, I do find myself having to utilize the tool rather frequently as the cage does loosen rather easily.

James G.

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SmallRig 3639 Specifications

  • Material

    Aluminum Alloy, Stainless Steel, Silicone

  • Compatibility

    Sony Alpha 7 IV
    Sony Alpha 7S III
    Sony Alpha 1
    Sony Alpha 7R IV

  • Dimensions

    4.25 x 3.87 x 2.0" (108 x 98.5 x 51.3mm)

  • Weight

    4.0 oz (115g) (+/-5g)

  • UPC Code

    6941590008042

Models
Accessory TypeHalf Cage L BracketBaseplates, Cable Guard, Cold Shoe Mount, Half Cage L Bracket, Top PlateBaseplates, Cable Guard, Half Cage L Bracket, Top Handle, Top Plate
Support TypeCages & ArmsCages & Arms, Plates & Platforms, Shoe MountCages & Arms
IncludesBaseplate/Platform, Top/Side BracketAccessory Bracket/Mount, Baseplate/Platform, Top/Side BracketBaseplate/Platform, Top Handle, Top/Side Bracket
Camera CompatibilitySony Mirrorless A7 & A9 SeriesCanon EOS RCanon Camcorder
Support CompatibilityCamera RigsCamera RigsCamera Cage, Handheld Support

About SmallRig 3639

A robust and versatile solution for professional photographers and videographers, the SmallRig 3639 Half Camera Cage is specifically engineered for Sony Alpha 7 IV, Alpha 7S III, Alpha 1, and Alpha 7R IV mirrorless cameras. This high-quality camera accessory offers a secure and stable platform for mounting a variety of additional equipment, enhancing your camera's functionality and versatility.

Constructed from durable materials, this sturdy half camera cage is designed to withstand the rigors of daily use. It features two locking side plates and a 1/4"-20 screw at the bottom, ensuring a firm lock on your camera and preventing any deflection. This design allows full access to your camera's dials and buttons, maintaining the intuitive grip experience of a bare camera.

The SmallRig 3639 Half Camera Cage is equipped with protective spacers all around, safeguarding your camera from potential scratches. It boasts multiple 1/4"-20 threaded holes, ARRI 3/8"-16 locating holes, and cold shoe mounts, providing ample space for attaching a range of accessories such as top handle 2165, side handle 2093, monitor mount 2903, microphones, and LED lights.

For those seeking stability in their shots, the cage features an Arca quick release plate at the bottom, compatible with DJI RS 2/RSC 2 and the quick release plate of DJI RS 2/RSC 2 stabilizers. This feature makes it an ideal choice for stabilizer shooting.

The cage also supports the optional HDMI Cable Clamp 3000, which works with Alpha 7 IV/Alpha 7S III to protect interfaces and ensure stable signal transmission during filming. However, please note that the HDMI Cable Clamp 3000 is not compatible with Alpha 1/Alpha 7R IV cameras.

To further enhance your user experience, the cage comes with a built-in magnetic spanner, simplifying the disassembly and assembly process. For optimal use of the side lock, please remove the split ring on the left side of the camera first.

In summary, the SmallRig 3639 Half Camera Cage for Sony Alpha 7 IV/Alpha 7S III/Alpha 1/Alpha 7R IV is a reliable, high-quality accessory that enhances your camera's functionality and durability, making it an excellent investment for any professional photographer or videographer.

SmallRig 3639 Features

  • Easy-to-use, lightweight half cage retains the grip experience of a bare camera
  • Multiple mounting points for accessories
  • Two-point locking prevents shakes (fixes camera via one 1/4"-20 screw at the bottom and the shoulder strap hole on the left side)
  • Arca quick release plate on the bottom for quick switching between tripod and stabilizer (DJI RS 2/RSC 2)
  • Built-in magnetic spanner for easy access

Warranty Information

This product has a limited warranty of 24 months.

Key Features

  • Enhance your Sony Alpha with this lightweight SmallRig half camera cage!
  • Maintain easy access to your camera's ports with the cage's open design.
  • Secure your camera: features a locking side plate for added stability.
  • Mount accessories easily using multiple 1/4"-20 & ARRI 3/8"-16 threads.
  • Craft precise shots with this durable, form-fitting aluminum alloy cage.
  • Weighing only 4oz, this cage adds minimal bulk to your camera setup.

What's in the box:

  • SmallRig 3639 Half Camera Cage
  • Locking Side Plate
  • SmallRig 2 Year Limited Warranty