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SmallRig Rhinoceros Cage Kit for Sony a7R V, a7 IV & a7S III

BH #SM4308 • MFR #4308
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SmallRig Rhinoceros Cage Kit for Sony a7R V, a7 IV & a7S III
Key Features
  • Formfitting Camera Cage
  • 1/4"-20 & 3/8"-16 Accessory Threads
  • Anti-Twist Three-Point Locking Design
  • Threads to Mount Optional Accessories
Protect your Sony a7R V, a7 IV, or a7S III series mirrorless camera and add accessories with this lightweight Rhinoceros Cage Kit from SmallRig. This durable aluminum and steel cage kit also integrates carbon fiber into the design, resulting in a 20% weight reduction and increased resistance to corrosion and deformation. With an anti-twist three-point locking design, this formfitting cage maintains access to the camera's controls and hot shoe, and it features a vast variety of mounting options. A handy HDMI cable clamp keeps your HDMI cable affixed securely with a thumbscrew and ensures uninterrupted signal transmission, and an Arca-type quick release plate provides mounting options onto Arca-type tripods and the DJI RS 2, RSC 2, RS 3, and RS 3 Pro gimbals.
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SmallRig 4308 Overview

Protect your Sony a7R V, a7 IV, or a7S III series mirrorless camera and add accessories with this lightweight Rhinoceros Cage Kit from SmallRig. This durable aluminum and steel cage kit also integrates carbon fiber into the design, resulting in a 20% weight reduction and increased resistance to corrosion and deformation. With an anti-twist three-point locking design, this formfitting cage maintains access to the camera's controls and hot shoe, and it features a vast variety of mounting options. A handy HDMI cable clamp keeps your HDMI cable affixed securely with a thumbscrew and ensures uninterrupted signal transmission, and an Arca-type quick release plate provides mounting options onto Arca-type tripods and the DJI RS 2, RSC 2, RS 3, and RS 3 Pro gimbals.

Compatibility
Sony a7S III, a7R V, and a7 IV mirrorless cameras

SmallRig 4308 Specs

Support Type
Cage
Grip Type
Single Handgrip
Camera Compatibility
Sony a7 IV, Sony a7R V, Sony a7S III
Mounting
Battery Plate Type
No
Accessory Mounting
Cage
Multiple 1/4"-20 Female Thread
Multiple Anti-Twist 3/8"-16 Female Thread
Camera Mounting
1/4"-20 Male Screw
Tripod Mounting
Built-In Arca-Type Plate
Shoe Mounting
Cage, Top
1x Cold Shoe
Rosettes
No
Cable Clamp
1x HDMI Clamp
General
Materials
Aluminum, Carbon Fiber, Silicone, Steel
Dimensions
6.4 to 4.2 x 2.8" / 161.4 to 107.9 x 71.2 mm
Weight
6.5 oz / 185 g
Packaging Info
Package Weight
0.72 lb
Box Dimensions (LxWxH)
7.4 x 5.5 x 3.5"

SmallRig 4308 Reviews

Fits Sony a7 V Despite Not Being Officially Listed

By Luis
Rated 5 out of 5
Date: 2025-12-22

I purchased this cage specifically for the new Sony a7 V, even though it is not officially listed as compatible. I decided to take a chance to see if it would fit—and it does. The only thing to keep in mind is that if someone has thicker fingers, the Photo / Video / S&Q switch can be a bit harder to use. In my case, the clearance is fine and I can access the switch without any issues. I’ve included photos so others can compare and see the clearance for themselves. One of the main reasons I chose this cage is because I didn’t like how the other available cage looked on the camera. This one fits the camera much better aesthetically and looks very clean and professional. All the buttons remain accessible, and the cage feels solid and well-designed. Since the Sony a7 V is still very new, there aren’t many cage options available yet, so I’m very happy I took the chance on this one. I really love how it looks on the camera, and I’m very satisfied with this purchase. The photos should help clear up any doubts about whether it actually fits.

Nice but wish it was different

By Kamau
Rated 4 out of 5
Date: 2024-10-27

It’s nice and sturdy however because of the a7 rv design mixed paired with this cage you probably won’t have enough space for your finger tips to comfortably sit.

See any errors on this page?

Is this a Nato compatible cage?

Is this a Nato compatible cage?
Asked by: David
The SmallRig Rhinoceros Cage Kit for Sony a7R V, a7 IV & a7S III features a NATO rail on the left side.
Answered by: Kenneth C
Date published: 2025-09-16

Does this Cage fits for the newest non R Sony ...

Does this Cage fits for the newest non R Sony A7V? Also, can I attach Side and Top Handle's from the Hawklock Series on this?
Asked by: Tanner
Yes, the SmallRig Rhinoceros Cage Kit for Sony a7R V, a7 IV & a7S III is compatible with the Sony a7 V Mirrorless Camera.
Answered by: Jonathan S
Date published: 2025-12-21

Can this cage be used for vertical shooting g in ...

Can this cage be used for vertical shooting g in a tripod?
Asked by: Kannan
Yes, the SmallRig Rhinoceros Cage Kit for Sony a7R V, a7 IV & a7S III can be mounted on either side for filming vertically.
Answered by: Jonathan S
Date published: 2025-09-14

Would this work with the a7r3? Since I have seen ...

Would this work with the a7r3? Since I have seen multiple cages being compatible with previous models.
Asked by: Aldair
No, the SmallRig Rhinoceros Cage Kit for Sony a7R V, a7 IV & a7S III is not compatible with the Sony A7rIII Mirrorless Camera.
Answered by: Jonathan S
Date published: 2024-07-25

will it fit the Sony A7R IV?

will it fit the Sony A7R IV?
Asked by: Edwin
yes , its saying its compatibile with Sony Alpha A7R IV check the COMPATIBILITY button up there
Answered by: Abdullrhman
Date published: 2024-03-25
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