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

4.6 out of 5 stars 297 ratings

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Purchase options and add-ons

  • 【Compatibility】SmallRig formfitting aluminum half cage 3639 is expecially designed for Alpha 7R V/Alpha 7 IV/Alpha 7S III/Alpha 1/Alpha 7R IV with lightweight protection of the camera.
  • 【Stable And Anti-twist】It includes two locking side plates and one 1/4"-20 screw at the bottom to lock the camera and prevent deflection and gives access to dials and buttons while retaining the grip experience of a bare camera.
  • 【Multiple Mounting Points】The half cage 3639 built-in all-around protective spacers protect the camera from being scratched. 1/4"-20 threaded holes, 3/8"-16 locating holes for ARRI, and cold shoes support top handle 2165, side handle 2093, monitor mount 2903, microphones, LED lights, etc. Quick release plate for Arca at the bottom is design for DJI RS 2 / RSC 2 / RS 3 / RS 3 Pro and the quick release plate for DJI RS 2 / RSC 2 / RS 3 / RS 3 Pro stabilizers for stabilizer shooting.
  • 【Built-In Accessories】This half cage 3639 stores a flat-head screwdriver and allen wrench that facilitates disassembly and assembly. The cage maintains rubber padding to prevent your camera from scratching and scuffing.
  • 【Note】① Cable Clamp for HDMI 3000 is not compatible with Alpha 1 and Alpha 7R IV cameras and will interfere with the synchroterminal interface when used on Alpha 7R V camera. ②To use the side lock, please remove the split ring on the left side of the camera first
  • 【Power Backup Solution】SmallRig NP-FZ100 camera battery charger set is available now, two 2040mAh(Real) rechargeable batteries and a charger brings long battery life for your videos and photos shooting, if you need a sufficient power supply, please search SmallRig NP-FZ100 Battery 3824

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This item: SmallRig Camera Half Cage for Sony Alpha 7R V/Alpha 7 IV/Alpha 7S III/Alpha 1/Alpha 7R IV - 3639
$52.99
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Product information

Technical Details

Manufacturer ‎SmallRig
Item model number ‎3639-SR
Product Dimensions ‎9.6 x 5.1 x 10.8 cm; 115 g
ASIN ‎B09P5BNKRW

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


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Product details

  • Product Dimensions ‏ : ‎ 9.6 x 5.1 x 10.8 cm; 115 g
  • Date First Available ‏ : ‎ Jan. 27 2022
  • Manufacturer ‏ : ‎ SmallRig
  • ASIN ‏ : ‎ B09P5BNKRW
  • Item model number ‏ : ‎ 3639-SR
  • Customer Reviews:
    4.6 out of 5 stars 297 ratings
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Product Description

3639

About SmallRig

In 2009, we launched the brand “SmallRig”, a word meaning “assisting videographic lovers in a powerful way”, which freed the filmmakers from the burden of traditional sets to enjoy DIY rigs. Users are the best designers. That's why we hold on to the idea of “Customer Comes First, Collaborate to Innovate, Enjoy Being There”. Meanwhile, SmallRig provides specialized services and solutions of shooting suites for users to create more possibilities of capturing the moment & framing the eternal.

About the Product

SmallRig Half Cage for Sony Alpha 7 IV/Alpha 7S III/Alpha 1/Alpha 7R IV 3639 is designed to provide accessory mounts and protect the camera. It includes two locking side plates and one 1/4"-20 screw at the bottom to lock the camera and prevent deflection and gives access to dials and buttons while retaining the grip experience of a bare camera.

Key Features

  1. Easy-to-use, lightweight half cage retains the grip experience of a bare camera
  2. Multiple mounting points for accessories.
  3. 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)
  4. Quick release plate for Arca-style on the bottom for quick switching between tripod and stabilizer (for DJI RS 2/RSC 2).
  5. Built-in magnetic spanner for easy access.

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Customer reviews

4.6 out of 5 stars
297 global ratings

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Top reviews from Canada

  • Reviewed in Canada on July 8, 2024
    Verified Purchase
    I just need a cage to attach rig system and the half cage was perfect. .. just what I needed without the extra bulk. It fit my A7IV perfectly without it moving around.
  • Reviewed in Canada on June 26, 2024
    Verified Purchase
    Love this thing! It’s not bulky and works great for filming portrait style using my monopod. The magnetic key that stores below is a great feature.
  • Reviewed in Canada on February 18, 2023
    Verified Purchase
    Well built, love the second point of contact + nato on the side is clutch. I was able to fit the FX3 top handle with another smallrig part. Quite happy with how it turned out. (With this setup, the cold shoe on the cage is useless though :/ )
  • Reviewed in Canada on May 10, 2025
    Verified Purchase
    It is the best solution for sony on rs4. Because it gives you the full flexibility of the arca swiss system and rs4's horizontal to vertical system. You don't need to unplug or take the whole thing down like other cage. The only thing, which is common for all the half cage, it will bend easily if you drop it.
  • Reviewed in Canada on November 1, 2023
    Verified Purchase
    But cannot use to put vertically on weebil S
  • Reviewed in Canada on May 20, 2022
    Verified Purchase
    for those who don't need the whole enclosure
    this will do...
    One person found this helpful
    Report
  • Reviewed in Canada on December 21, 2024
    Verified Purchase
    I’m very happy with the SmallRig Camera Half Cage for my Sony Alpha 7 series. The build quality is excellent, and it adds a lot of stability and handling to the camera. The cage fits well, offering plenty of attachment points for accessories, which is a huge bonus for my setup.

    That said, there’s a small amount of movement in the camera within the cage, which can be a bit annoying, but it’s not a deal-breaker for me. Overall, it provides great protection, and I feel much more confident using my camera in different environments. Highly recommend it if you’re looking for a solid cage for your Sony Alpha 7 series.
  • Reviewed in Canada on July 22, 2022
    Verified Purchase
    I love the cage, it gives me mounting points for everything that I need, however I will often take the cage off for photography, and put it back on for video. I wish the screws Smallrig included were higher quality so that they would not strip as easily. It is also very difficult to find a replacement screw.

Top reviews from other countries

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  • Kindle Customer
    5.0 out of 5 stars Useful
    Reviewed in India on June 19, 2025
    Verified Purchase
    Great
  • Juan Trevilla
    5.0 out of 5 stars Excelente articulo
    Reviewed in Mexico on March 8, 2024
    Verified Purchase
    Llego en tiempo y forma, la calidad es excelente y es mejor de lo que pensé
    Customer image
    Juan Trevilla
    5.0 out of 5 stars
    Excelente articulo

    Reviewed in Mexico on March 8, 2024
    Llego en tiempo y forma, la calidad es excelente y es mejor de lo que pensé
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    Customer image
    Report
  • Dmitry
    5.0 out of 5 stars Perfect addition to the camera
    Reviewed in the United Arab Emirates on November 23, 2024
    Verified Purchase
    Lighter that full cage, added +100500 towards camera feeling in hands but still retain easy fixing on a tripod :)
  • Sarah Vickery
    5.0 out of 5 stars Small rig always reliable
    Reviewed in Australia on December 29, 2024
    Verified Purchase
    Great product, exactly as described and super durable. Great new kit for my mini dslr rig.
  • WeiWei Gao
    5.0 out of 5 stars SmallRig Camera Half Cage for Sony Alpha 7R V – A Compact Yet Versatile Accessory
    Reviewed in the United States on March 4, 2025
    Verified Purchase
    ✅ Solid Build Quality – Made from aluminum alloy, the cage feels sturdy and premium without adding too much weight to your setup. It provides excellent protection for the camera body.

    ✅ Plenty of Mounting Options – Comes with multiple 1/4”-20 and 3/8”-16 threaded holes, ARRI locating points, and a cold shoe mount, giving you flexibility to attach accessories like a microphone, monitor, or handle.

    ✅ Ergonomic Design – The half-cage design keeps the grip area open, allowing you to comfortably hold and operate the camera without obstruction.

    ✅ Secure Fit – The cage locks into place well with a secure screw and anti-twist design, preventing unwanted movement while filming.

    ✅ Arca-Swiss Compatibility – The built-in quick-release plate makes it easy to mount on a tripod or gimbal without needing additional plates.

    ❌ Pricey for a Half Cage – Considering that full cages are available at similar price points, some may feel this is slightly expensive for what it offers.

    The SmallRig Camera Half Cage for Sony Alpha 7R V is an excellent choice for filmmakers and photographers who want extra protection and accessory mounting options without adding unnecessary bulk. However, if you need full protection or more customization, a full cage might be a better investment.