SmallRig 3639 Half Cage For Sony Alpha 7 IV/Alpha 7s III/Alpha 1/Alpha 7R IV
The 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 a 1/4"-20 screw at the bottom to secure the camera and prevent flexing. It allows access to the control wheels and buttons while maintaining the grip feel of a bare camera. Built-in, surrounding protective spacers shield the camera from scratches. 1/4"-20 threaded holes, ARRI 3/8"-16 mounting holes, and cold shoes support the top handle 2165, side handle 2093, monitor mount 2903, microphones, LED lights, and more. The Arca quick release plate at the bottom is compatible with the DJI RS 2/RSC 2 and the quick release plate of the DJI RS 2/RSC 2 stabilizers for stabilizer shots. The optional HDMI cable clamp 3000 works with Alpha 7 IV/Alpha 7S III to protect the interfaces and ensure stable signal transmission during filming. Additionally, the cage features a built-in magnetic key that facilitates assembly and disassembly.
The 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 a 1/4"-20 screw at the bottom to secure the camera and prevent flexing. It allows access to the control wheels and buttons while maintaining the grip feel of a bare camera. Built-in, surrounding protective spacers shield the camera from scratches. 1/4"-20 threaded holes, ARRI 3/8"-16 mounting holes, and cold shoes support the top handle 2165, side handle 2093, monitor mount 2903, microphones, LED lights, and more. The Arca quick release plate at the bottom is compatible with the DJI RS 2/RSC 2 and the quick release plate of the DJI RS 2/RSC 2 stabilizers for stabilizer shots. The optional HDMI cable clamp 3000 works with Alpha 7 IV/Alpha 7S III to protect the interfaces and ensure stable signal transmission during filming. Additionally, the cage features a built-in magnetic key that facilitates assembly and disassembly.
The 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 a 1/4"-20 screw at the bottom to secure the camera and prevent flexing. It allows access to the control wheels and buttons while maintaining the grip feel of a bare camera. Built-in, surrounding protective spacers shield the camera from scratches. 1/4"-20 threaded holes, ARRI 3/8"-16 mounting holes, and cold shoes support the top handle 2165, side handle 2093, monitor mount 2903, microphones, LED lights, and more. The Arca quick release plate at the bottom is compatible with the DJI RS 2/RSC 2 and the quick release plate of the DJI RS 2/RSC 2 stabilizers for stabilizer shots. The optional HDMI cable clamp 3000 works with Alpha 7 IV/Alpha 7S III to protect the interfaces and ensure stable signal transmission during filming. Additionally, the cage features a built-in magnetic key that facilitates assembly and disassembly.
The 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 a 1/4"-20 screw at the bottom to secure the camera and prevent flexing. It allows access to the control wheels and buttons while maintaining the grip feel of a bare camera. Built-in, surrounding protective spacers shield the camera from scratches. 1/4"-20 threaded holes, ARRI 3/8"-16 mounting holes, and cold shoes support the top handle 2165, side handle 2093, monitor mount 2903, microphones, LED lights, and more. The Arca quick release plate at the bottom is compatible with the DJI RS 2/RSC 2 and the quick release plate of the DJI RS 2/RSC 2 stabilizers for stabilizer shots. The optional HDMI cable clamp 3000 works with Alpha 7 IV/Alpha 7S III to protect the interfaces and ensure stable signal transmission during filming. Additionally, the cage features a built-in magnetic key that facilitates assembly and disassembly.
in 29 offers
The lowest price for SmallRig 3639 Half Cage For Sony Alpha 7 IV/Alpha 7s III/Alpha 1/Alpha 7R IV right now is $42.50 at digiDirect Australia, compared across 21 retailers.
The all-time low was $30.00 on 26 Nov 2025 — today's price is 42% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 23 Aug 2026.
Last updated at 23/08/2026 13:19:23
SmallRig Half Cage for Sony Alpha 7R V/Alpha 7 IV/Alpha 7S III/Alpha 1 / Alpha 7R IV 3639
Free delivery
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SmallRig 3639 Aluminum Half Cage for Sony Alpha 1, 7 IV, 7S III and 7R IV with Arca Baseplate
Delivery between 28 Aug – 2 Sept $8.95
SmallRig 3639 Half Cage for Sony A7R V , A7 IV , A7S III , A1 , A7R IV
Delivery between 25 Aug – 3 Sept $13.25
SmallRig Half Cage for Sony Alpha 7R V / Alpha 7 IV / Alpha 7S III / Alpha 1 / Alpha 7R IV 3639
Delivery between 26 Aug – 3 Sept $15
SmallRig 3639 Half Cage for Sony Alpha 7 IV/Alpha 7S III/Alpha 1/Alpha 7R IV
7-day returns
SmallRig Half Cage for Sony Alpha 7R V / Alpha 7 IV / Alpha 7S III / Alpha 1 / Alpha 7R IV 3639
Delivery by Fri $9.70
SmallRig Half Cage for Sony Alpha 7 IV/Alpha 7S III/Alpha 1/Alpha 7R IV 3639
Delivery $4.90
SmallRig Half Cage for Sony Alpha 7 IV/Alpha 7S III/Alpha 1/Alpha 7R IV 3639
Free delivery between Tue – Wed
Smallrig Half Cage For Sony Alpha 7 Iv/alpha 7s Iii/alpha 1/alpha 7r
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Half Cage For Sony Alpha 7r V/alpha 7 Iv/alpha 7s Iii/alpha 1 / Alpha
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
originally posted on bhphotovideo.com
Couldn't be happier wi this half cage.
originally posted on bhphotovideo.com
The other 1/2 cage they sell is great... however, one big problem - it gets lose on almost every shoot. They solved that problem with this one. there is a second securing point that goes through the strap holder eylet. it's amaing. no more worying about it coming lose.
originally posted on bhphotovideo.com
Bought this because you can get another adapter on top to use the fx3 xlr handle. Works well with my a7iv.
| Support Type | Cage |
| Grip Type | Grip Required (Not Included) |
| Camera Compatibility | Sony a1, Sony a7 IV, Sony a7R IV, Sony a7S III |
| Shoe Mounting | 1 x Cold Shoe |
| Construction | Aluminum, Silicone, Steel |
SmallRig Half Cage for Sony Alpha 7R V/Alpha 7 IV/Alpha 7S III/Alpha 1 / Alpha 7R IV 3639
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
SmallRig 3639 Aluminum Half Cage for Sony Alpha 1, 7 IV, 7S III and 7R IV with Arca Baseplate
Delivery between 28 Aug – 2 Sept $8.95
SmallRig 3639 Half Cage for Sony A7R V , A7 IV , A7S III , A1 , A7R IV
Delivery between 25 Aug – 3 Sept $13.25
SmallRig Half Cage for Sony Alpha 7R V / Alpha 7 IV / Alpha 7S III / Alpha 1 / Alpha 7R IV 3639
Delivery between 26 Aug – 3 Sept $15
SmallRig 3639 Half Cage for Sony Alpha 7 IV/Alpha 7S III/Alpha 1/Alpha 7R IV
7-day returns
Couldn't be happier wi this half cage.
The other 1/2 cage they sell is great... however, one big problem - it gets lose on almost every shoot. They solved that problem with this one. there is a second securing point that goes through the strap holder eylet. it's amaing. no more worying about it coming lose.
Bought this because you can get another adapter on top to use the fx3 xlr handle. Works well with my a7iv.
for wildlife or night photography where you like to have the camera vertical I have added a plate on side to do that. As tilting a ball head or mounting to a Gimbal head mount may not work. Also solid mount for a small screen if doing video work.
Nice durable cage, quick and easy to install/uninstall on A7SIII. I bought it mainly to shoot vertical on a tripod and gimbal. It's nice to have other attachment points available in the future if needed though.
It's light and functional. Full cage is heavier and not friendly for photography. I feel like this is the best one for hybrid shooters especially when you are looking for a go-to cage.
Best mini-cage for a7RV! love the functionality and protection it offers
Priced well and the the 2nd attachment point gives good rigidity to the half-cage.
I am impressed at how they created this cagethe 2nd locking screw is simply so smart(ok personally I had a few issues with one screw being a bit tight, but that's a detail)and love also the arca swiss plate system at the bottom that just works perfectly with the dji rs3finally having a magnetic screwdriver at the bottom is perfectI wonder how I could get excited that much by a cage ;), but it is work well done! Wish all accessories had a designer that dedicated.
| Support Type | Cage |
| Grip Type | Grip Required (Not Included) |
| Camera Compatibility | Sony a1, Sony a7 IV, Sony a7R IV, Sony a7S III |
| Shoe Mounting | 1 x Cold Shoe |
| Construction | Aluminum, Silicone, Steel |
