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SHAPE Shoulder Mount Kit with Matte Box & Follow Focus for Sony a7R III/a7 III Camera

BH #SHA73SMKIT • MFR #A73SMKIT
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SHAPE Shoulder Mount Kit with Matte Box & Follow Focus for Sony a7R III/a7 III Camera
Key Features
  • Cage for Sony a7R III/a7 III Camera
  • Wooden Push-Button Top Handle
  • 15mm LW Clamp
  • Quick Release Delta Rod Base System
The Shoulder Mount Kit with Matte Box and Follow Focus from SHAPE includes the components necessary for protecting and mounting the Sony a7R III or a7 III camera. Included in this kit is a formfitting ergonomic cage which protects the camera and features a horizontal 15mm rod clamp on both sides. It provides access to all controls and ports, as well as multiple attachment points for accessories. Included in the kit are a wooden push-button top handle with 15mm LW clamp, a quick release Delta rod base system, a Metabones adapter support bracket, a pair of 18" 15mm rods, a Quick Handle Rod Bloc, a mini composite shoulder pad and back pad, a follow focus friction and gear clic system with adjustable marker, and a 4 x 4" matte box.
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Kit Contains:

The Shoulder Mount Kit with Matte Box and Follow Focus from SHAPE includes the components necessary for protecting and mounting the Sony a7R III or a7 III camera. Included in this kit is a formfitting ergonomic cage which protects the camera and features a horizontal 15mm rod clamp on both sides. It provides access to all controls and ports, as well as multiple attachment points for accessories. Included in the kit are a wooden push-button top handle with 15mm LW clamp, a quick release Delta rod base system, a Metabones adapter support bracket, a pair of 18" 15mm rods, a Quick Handle Rod Bloc, a mini composite shoulder pad and back pad, a follow focus friction and gear clic system with adjustable marker, and a 4 x 4" matte box.

SHAPE Ergonomic Cage for Sony a7R III/a7 III Camera

The Ergonomic Cage for Sony a7R III/a7 III from SHAPE is a formfitting cage designed for the a7R III or a7 III 4K camera. It protects the camera by securely locking it to the cage. It provides access to all controls and ports, as well as multiple attachment points for accessories. It is equipped with a cable retainer system for securing the three left side cables, and is compatible with a full-sized HDMI cable protector lock to secure the use of your HDMI cable.

There are multiple mounting options for accessories including two cold shoe mounts on top of the cage. These include thirteen 1/4"-20 anti-rotating hole patterns, five ARRI 3/8"-16 anti-rotating hole patterns. 3/8"-16 anti-rotating hole patterns, and two UNC 3/8"-16 threaded mounting holes. This cage is made from CNC Machined aluminum and is compatible with the Sony XLR-K2M audio unit. It features an ARRI rosette that can be mounted in four different locations.

Simple, hassle-free, ergonomic design for filmmakers, videographers, and photographers
Horizontal 15mm rod clamp on each side allows for the positioning of a 15mm rod
Easy access to the camera's features such as the control buttons, side outputs, memory card, the battery compartment, and the lens release button
The support between the lens and the camera grip is designed to anticipate a clearing for the fingers when the camera is handheld, allowing for an ergonomic grip
Easy to assemble and disassemble, the components don't need to be removed to install the camera
The camera is held in place by a 1/4"-20 captive screw integrated into the base of the cage, and secured by the back and sides so it doesn't move forward when equipped with a heavier lens
You can attach a Delta adapter plate (sold separately) underneath the cage to mount it on a quick release plate to switch from a tripod to a handheld setup
You can operate the camera without having to remove the cable doors, and the strap hooks can remain attached to the camera while inserted in the cage
CNC Machined 6061-T6 aluminum holds the camera securely in place and restricts it from rotating with two anti-rotating tabs at the front
HDMI cable protector lock
SHAPE 15mm LW Clamp for Top Handle Grip

The clamp is made of CNC aluminum and can be attach to the REVOLT Top Handle. The clamp is designed to support a 15 mm stud, like the REVOLT EVF Mount Bracket. The ratchet knob device let you adjust and strongly fix the position of the stud to top handle.

UPC: 629266007662
SHAPE 15mm Aluminum Rods (Pair, 18")

This pair of 15mm Aluminum Rods from SHAPE connects to your camera rig, extending it and letting you add compatible accessories. With these two rods and a few fundamental accessories, you can begin building your own rig from scratch.

The rods are each 15mm in diameter, 18" long, hollow, non-threaded, and made of reliable aluminum with a silver finish.

UPC: 629266002223
SHAPE Quick Handle + Rod Block

The Shape Quick Handle + Rod Block is a professional video stabilization accessory with 2 camera handles, each providing an individual rotation angle of 360°. You can attach the handle to the camera platform using a simple screw knob. A simple push button located at the articulation allows easy attachment and removal.

Combined with the anodized aluminum Rod Block, the Quick Handle offers composite camera support for all 15mm rods. You can achieve precise positioning by sliding the Quick Handle along the rods and tightening the small red knob located on the Rod Block. With 2 screw-threaded holes, the Rod Block provides for attachment of components such as the Quick Handle.

Quick Handle
Provides professional video stabilization with 2 handles
Each handle offers 360° individual rotation
Offers easy attachment/removal
Rod Block
Composed of anodized aluminum
Offers composite camera support for all 15mm rods
Provides precise positioning of the Quick Handle along the rods via the tightening of the small red knob
With 2 screw-threaded holes, the Rod Block provides for attachment of components
UPC: 629266000793
SHAPE Mini Composite Shoulder Pad

The SHAPE Mini Composite Shoulder Pad is a comfort-padded and comfort-shaped shoulder pad for the back of your camera rig. Outfitted with a 15mm-mount SHAPE Rod Block, the pad attaches right onto a pair of 15mm rods, slides into the best position on them, and tightens in place by a quality lever. It also has a black Screw Knob under which you can add a SHAPE Counter Weight or a SHAPE Back Pad, both optional and both back-supported accessories that work as extensions of the shoulder pad. The Screw Knob's screw is a 1/4"-20 screw. If you remove the Screw Knob, you'll have yourself a 1/4"-20 screw-hole to add various 1/4"-20-mount accessories into.

UPC: 629266000830
SHAPE Back Pad

The Back Pad from SHAPE is a standard rig component included with most SHAPE camera rigs. Its design features a powder coated anodized aluminum plate and arm which are attached to a thick padding on the side facing the user. The pad is easy to both attach and remove from your rig, and it supports the SHAPE BOX attachment. Additionally, the pad's position can be adjusted to the user's preference up to 2" vertically and 360° horizontally.

Compatible Support Series
  • Composite
  • Cameleon
  • Sumo
  • Spider
UPC: 629266001202
SHAPE Friction & Gear Follow-Focus Clic with Adjustable Marker

The Shape Friction & Gear Follow-Focus Clic with Adjustable Marker is designed to attach onto standard 15mm rods of shoulder support rigs and other rigs. It attaches onto them via a clamp system, with simplicity. You would sit the Clic atop the rods, and then slide and close a Shape-patented lever clamp underneath the rods, and the lever locks and holds the Clic securely on the rods.

The Clic's focus mechanism also works with a clamp system, which when unlocked loosens the focus mechanism and allows it to be moved horizontally. It moves so to adjust itself closer to the lens. As it moves, its main feature -- the focus disk -- moves with it, and the focus disk is what reaches the lens. The focus disk can either be a friction wheel, as you see in the photo above, or a gear wheel. Both are present in this package, and replacing one with the other is accomplished with the help of the included Allen wrench. The friction wheel has a rubber outer surface that would press up against the lens, keep firm contact with it, and ensure accurate and slip-free focusing. The friction wheel would serve well for most lenses and is made of high-quality rubber that in cold temperatures won't get too cold to lose its grip. The gear wheel would accommodate those lenses that specifically have teeth on their focusing rings, and it would do so without any ring gears, by pressing its .8 pitch gears into the teeth.

The focus mechanism can be used on either the left or the right side of the lens, depending on the direction you place the Clic onto the rods in. And the focus disk itself can be used either in front of the focus mechanism, as you see in the photo above, or behind it, so to accommodate a wider variety of lens lengths. To move the disk to the rear, you would first just unscrew two screws from a cube-shaped gearbox that you can't see in the photo above because it sits behind the focus disk. Once the screws are off, the focus disk can just be flipped over for use with longer lens constructions.

In the photo above, the white mark disk that you see to the right of the red knob is made of highly resistant Delrin thermoplastic. It can be written on with non-permanent markers to mark up focus measurements for various predetermined shots, and it is interchangeable and thereby many predetermined measurements can be kept ready at your side. Additionally, a slide-adjustable marker made of aluminum is included to be attached beside the mark disk and to be moved and tightened into positions along the disk.

The Clic is CNC machined and made of lightweight anodized aluminum for strength and durability.

Designed to attach onto standard 15mm rods.
Attaches onto the rods via a patented clamp system.
The focus mechanism moves horizontally to adjust to the lens.
The focus mechanism can be used on the left or right side of the lens.
A friction wheel and a gear wheel are included to interchange as the focus disk.
The focus disk flips to the rear of the focus mechanism to accommodate longer lenses.
A thermoplastic mark disk can be written on with non-permanent markers and is interchangeable.
An included marker attaches beside the mark disk and slides and tightens into positions along the disk.
UPC: 629266000946
SHAPE 2-Stage 4 x 4" Matte Box

The SHAPE 2-Stage 4 x 4" Matte Box accepts lenses with up to a 100mm front outside diameter. It mounts to 15mm LWS rods and utilizes a swing-away design, which lets you perform quick lens changes without having to remove the matte box from your rods. You can adjust the height of the matte box in relation to the rods, which comes in handy when your lens center-to-rod center height is slightly off from the standard.

Two filter stages, one rotating, support the use of 4 x 4" filters. The matte box comes with a top flag (eyebrow), side flags, six matte box donuts in 65, 77, 85, 88, 100, and 105mm sizes, and an elastic donut.

The matte box has a rear opening of 100mm for lenses.
The included anti-reflection donuts prevent light behind the camera from reflecting off any filters in the matte box and degrading the image. Included with the matte box are anti-reflection donuts for lenses with a front outside diameter of 65, 77, 85, 88, 100, and 105mm. The included elastic donut supports lenses with a front outside diameter between 66 and 90mm, and it is especially useful with lenses that grow and shrink as you change focus or zoom.
The side flags incorporate a hook design as a safety feature where they attach to the matte box. This helps prevent them from falling out of the matte box should the lock-down thumbscrew loosen accidentally.
The swing-away bracket incorporates a height adjustment, enabling you to compensate a total of 0.65" vertically. This allows you to use this matte box with a variety of camera/rod support combinations that may vary slightly from the industry standard 85mm distance from LWS rod center to lens port center.
Kit Contains:

SHAPE Ergonomic Cage for Sony a7R III/a7 III Camera

Compatible Cameras
Sony a7R III and a7 III
Material
CNC Machined aluminum
Dimensions
5.2 x 6.3 x 3.0" / 13.1 x 16.0 x 7.6 cm
Weight
10.6 oz / 300 g
Packaging Info
Package Weight
1.45 lb
Box Dimensions (LxWxH)
8.6 x 7.4 x 4.3"

SHAPE A73CAGE Reviews

No instructions or set up guide- matt box keeps falling off

By Gop
Rated 2 out of 5
Date: 2026-01-08

This shoulder mount matte box setup for the Sony a7III is extremely frustrating to use due to the complete lack of instructions or user support. There is no manual, no setup guide, and no tutorial included or available online for this specific model. The components—especially the matte box and zoom knob control—are not intuitive, and the system keeps slipping even when using the provided lens rings. I contacted B&H for help and was redirected to SHAPE, the manufacturer of this product. Unfortunately, SHAPE also provides no proper instructions, documentation, or video guidance for this setup. The photos they provide only show where parts are located, not how to correctly assemble, secure, or adjust them. Most of the tutorials you can find online are for other SHAPE models, which are significantly different and not applicable to this rig. That makes learning by trial-and-error the only option—which is unacceptable for a professional filmmaking accessory at this price point. I’ve wanted a shoulder-mounted matte box setup for a long time, but without any real guidance or support, this product is not user-friendly and not production-ready. I would not recommend it unless you already have hands-on experience with this exact system or are prepared to spend hours guessing how it’s supposed to work. Very disappointing experience.

See any errors on this page?

Will this cage/shoulder mount/matte box etc. with ...

Will this cage/shoulder mount/matte box etc. with the Sony Alpha a7R IV?
Asked by: Rubén
The A7R IV will have a slightly different design than past models. It will not fit properly in the cage.
Answered by: Joe P
Date published: 2019-11-14

Is it possible to get this rig with a 4x56 matte ...

Is it possible to get this rig with a 4x56 matte box instead?
Asked by: Stuart
This is a kit put together by Shape which we do not offer with 4 x 5.65 matte box. However, you could always purchase BH #SHA73SM instead and add a different matte box, along with a different follow focus. https://bhpho.to/2KHbx5z
Answered by: Joe P
Date published: 2019-11-21
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