Search  for anything...

SMALLRIG Camera Cage Only for Sony Alpha 7S III / A7S III / A7SIII / A7S3-2999

  • Based on 444 reviews
Condition: New
Checking for the best price...
$43.90 Why this price?
Save $16.90 was $60.80

Buy Now, Pay Later


As low as $10 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Monday, Jun 15
Order within 22 hours and 4 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Features

  • FORMFITTING FULL CAGESmallRig A7S III Cage 2999 maintains access to the camera's controls and hot shoe. Made of premium aluminium alloy, the cage is a solid piece of metal that is highly resistant to oxidation and stands the test of time.
  • PERFECT PROTECTIONThe cage incorporates an anti-twist design with an M2.5 screw fixed to the strap hole in addition to the 1/4"-20 camera mounting screw so your camera can't move around in the cage. SmallRig Cage 2999 also incorporates an anti-twist design with padding on the base to protect the camera from scratching.
  • MULTIPLE MOUNTING POINTSIn addition to one cold shoe mount and multiple 1/4"-20 and 3/8"-16 threaded holes, this formfitting aluminum cage features several ARRI-style mounts for preventing accessories from twisting when mounted on the cage. It also comes with a built-in NATO rail on the left of the cage. Mounting holes on the front allow mounting a separately available lens adapter 1764.
  • RECOMMENDATIONSThe cage is compatible with SmallRig universal accessory system. You can attach SmallRig Wooden Side Handle 2093 for hand-held shooting, and SmallRig Cable Clamp 3000 to protect the HDMI cable and port. ARRI-style mounts on the top and side are provided to attach SmallRig ARRI Locating Handle or SmallRig Ball Head Magic Arm.
  • SWEET DESIGNLightweight design with only 200g. Strap holes are included to add a separately available wrist strap or neck strap to your rig. Besides, with built-in magnetic suction design, the included Allen Wrench is ready to use without fear of loss.
  • Power Backup SolutionSmallRig 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

Color: Black


Brand: SMALLRIG


Compatible Devices: Sony Alpha 7S III A7S III A7S3


Product Dimensions: 2.52"D x 5.73"W x 4.19"H


Item Weight: 220 Grams


Number of Items: 1


Brand: SMALLRIG


Model Number: 2999


Manufacturer Part Number: 2999-TY


Model Name: 12744


Manufacturer: SmallRig


Maximum Weight Recommendation: 7.76 Ounces


Item Dimensions D x W x H: 2.52"D x 5.73"W x 4.19"H


Item Weight: 220 Grams


Color: Black


Compatible Devices: Sony Alpha 7S III A7S III A7S3


Has Self-Timer: No


Aspect Ratio: 32


Video Capture Format: MP4, AVCHD


Video Capture Resolution: 4K (3840 x 2160)


Audio Recording: No


Maximum Shutter Speed: 1/8000 seconds


Shooting Modes: Manual


Exposure Control Type: Manual (M)


Water Resistance Level: Not Water Resistant


File Format: MP4, AVCHD


Media Type: ProductImage


Viewfinder Type: Electronic Viewfinder (EVF)


Screen Size: 145.5 Millimeters


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Jun 15

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Excellent Camera Cage for Sony a7S III
I recently purchased the Smallrig Camera Cage for my Sony a7S III, and I couldn't be happier with my decision. This product has completely transformed my shooting experience and added tremendous value to my videography setup. The build quality of the Smallrig Camera Cage is outstanding. It's sturdy, durable, and fits my Sony a7S III perfectly. The cage provides excellent protection for my camera while offering a plethora of mounting options. I especially appreciate the thoughtfully designed layout, which allows me to attach various accessories such as a microphone, monitor, and lights without any hassle. The cage's design doesn't obstruct any of the camera's essential functions, which is crucial for capturing spontaneous moments efficiently. The attention to detail is evident in every aspect of this camera cage. The precise engineering ensures a snug fit, giving me confidence that my camera is secure during intense shooting sessions. The ergonomic design also enhances the grip, making it comfortable to hold for extended periods. Additionally, the numerous 1/4"-20 and 3/8"-16 threads provide endless customization possibilities, allowing me to tailor my rig according to my specific needs. Another standout feature is the quick release plate, which allows me to switch between handheld shooting and tripod use seamlessly. This feature is incredibly convenient, saving me valuable time during my shoots. In terms of value for money, the Smallrig Camera Cage is unbeatable. Considering its high-quality construction, versatility, and the enhancement it brings to my filmmaking endeavors, it's a worthy investment for any Sony a7S III user. The cage is also easy to install, making it accessible for both beginners and experienced videographers. In conclusion, the Smallrig Camera Cage for Sony a7S III is a game-changer for any filmmaker or content creator. Its exceptional build quality, versatility, and thoughtful design make it an indispensable addition to my gear collection. I highly recommend this product to anyone looking to elevate their filmmaking experience. ... show more
Reviewed in the United States on October 17, 2023 by NewEraSports

  • 100% trusted
There's nothing better than protecting your cameras, and Smallrig offers many solutions for that and more. I recommend this product because it helps me protect my camera and also allows me to attach more accessories to it. Buy it now... No hay nada mejor que proteger las cámaras y Smallrig ofrece muchas soluciones para eso y más. Recomiendo este producto ya que me ayuda a proteger mi cámara y a su vez instalarle más accesorios a la misma. Cómpralo ya… ... show more
Reviewed in the United States on January 12, 2026 by Sam

  • Fits the A7sii Fits the A7sii
ITS FITS THE A7sii And anything else in the a7ii series. Including the A7ii, a7Rii and a7Sii. Feels sturdy. Plenty of mounting holes. Buy the handle.
Reviewed in the United States on July 18, 2025 Reviewed in the United States on July 18, 2025 by robert

  • Exactly what you need to build a great rig! Exactly what you need to build a great rig!
This thing is made to perfection and it fits awesome. Smallrig always makes awesome accessories and this base cage will get you started on the road to building your dream rig. I love that they are included the needed tool to the bottom of the cage with magnets. Now, go order it. :)
Reviewed in the United States on February 14, 2021 Reviewed in the United States on February 14, 2021 by Ryan

  • Nice cage.
This is a nice, sturdy little cage. I like that it not only has the button screw as a point of contact, but also the area where the strap goes in can be screwed to the cage as well. I’m using with an a7s3
Reviewed in the United States on October 14, 2022 by Brody Gusar

  • Does the job
I just wish the opening for the battery area was just a bit wider so the battery slides out easier but it ain’t a deal breaker.
Reviewed in the United States on May 16, 2026 by Ty H.

  • Fits Both, A7r 2 and 3 Fits Both, A7r 2 and 3
I own both an A7r II and III. Purchase the cage because it was alot less than the one advertised for the A7r III. All you have to do is remove one screw. Now its snug as a bug.. So far so good.. Have all access to knobs and dials, no ports blocked
Reviewed in the United States on September 21, 2023 Reviewed in the United States on September 21, 2023 by nuohkhoun

  • Best Smallrig cage yet! Best Smallrig cage yet!
I’ve had about 5 different small rig cages for several camera models. This is the lightest and most shape confirming one. Has a built nato rail on the left and the cage is designed so you can add handles, triggers and just get really creative in the way that you can set your rig to hit the ground running! ... show more
Reviewed in the United States on October 30, 2020 Reviewed in the United States on October 30, 2020 by pablocordovi

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...