SMALLRIG Full Cage for Sony Alpha 7R V / 7 IV / 7S III / A1 / 7R IV 3667B

The SMALLRIG Full Cage 3667B is a professional protective cage designed to transform Sony’s flagship Alpha cameras into versatile filmmaking systems. Unlike basic frames, this cage provides a comprehensive rigging solution with multiple mounting points, anti‑twist protection, and ergonomic handling. As a result, it empowers filmmakers and photographers to expand their setups with confidence, ensuring both creative freedom and technical reliability across diverse shooting environments.

Rigging Excellence

Stability

SMALLRIG engineered the 3667B to deliver superior stability. When cameras are mounted on rigs or tripods, unwanted movement can compromise footage quality. However, this cage locks firmly onto Sony Alpha 7R V, 7 IV, 7S III, A1, and 7R IV cameras, ensuring a secure fit that minimizes vibration. Consequently, creators can capture cinematic shots with confidence, knowing their rig remains steady even during dynamic sequences.

Flexibility

In addition to stability, the cage offers remarkable flexibility. It features multiple 1/4″-20 and 3/8″-16 threaded holes, as well as ARRI locating points and cold shoe mounts, allowing users to attach monitors, microphones, lights, or other essential accessories. Moreover, its form‑fitting design ensures full access to camera controls, ports, and battery compartments, making it suitable for diverse workflows. This adaptability ensures that filmmakers can transition seamlessly between handheld, tripod, or gimbal setups without interrupting their production.

Durability

Durability is another defining feature of the 3667B. SMALLRIG constructed the cage from aircraft‑grade aluminum alloy, which withstands demanding production environments. Furthermore, its anodized finish resists scratches and wear, ensuring long‑lasting reliability. Because durability translates into peace of mind, professionals can trust that their cage will perform consistently across multiple projects, whether indoors or outdoors.

Compatibility

Compatibility plays a crucial role in professional rigging, and this cage excels in that regard. It integrates seamlessly with Sony Alpha 7R V, 7 IV, 7S III, A1, and 7R IV cameras, ensuring a snug fit without interfering with essential functions. Therefore, whether you are building a lightweight rig for travel photography or a complex system for commercial production, the 3667B fits effortlessly into your workflow.

Technical Specifications

• Material: Aircraft‑grade aluminum alloy
• Compatibility: Sony Alpha 7R V, 7 IV, 7S III, A1, and 7R IV cameras
• Mounting Options: Multiple 1/4″-20 and 3/8″-16 threads, ARRI locating points, cold shoe mounts
• Design: Form‑fitting with anti‑twist protection
• Access: Full access to camera controls, ports, and battery compartment
• Weight: Lightweight yet sturdy for handheld and tripod use

Professional Applications

• Filmmaking: Ideal for narrative films, documentaries, and commercials, offering stable handheld shooting with secure accessory mounting.
• Live Production: Provides reliable camera positioning for streaming and event coverage.
• Studio Integration: Works seamlessly with tripods, sliders, and gimbals, supporting multi‑device workflows.
• Field Shooting: Rugged construction and portability make it perfect for outdoor photography and cinematography.

Accessory Compatibility

The cage supports external monitors, microphones, and lights via multiple mounting points. In addition, it pairs well with SSD holders, cable clamps, and other rigging accessories, ensuring efficient cable management. Explore related Storage solutions to expand recording capacity. Moreover, it integrates smoothly with professional Monitors for accurate framing and color grading. For complete setups, filmmakers can combine this cage with high‑performance Laptops for editing and post‑production.

Extended Use Cases

• Independent Filmmakers: They benefit from adaptability, enabling professional results without complex setups. Because the cage locks securely, it allows them to experiment with creative angles while maintaining stability.
• Corporate Productions: Companies gain efficiency through improved handling and accessory integration. As a result, they can produce training videos, promotional content, or interviews with consistent quality.
• Educational Institutions: Film schools can rely on the cage for teaching professional rigging techniques. Students gain hands‑on experience with industry‑standard equipment, preparing them for real‑world production environments.
• Creative Agencies: Agencies appreciate the flexibility and durability offered for high‑quality production. Consequently, they can build complex rigs for commercials or branded content while maintaining ergonomic handling.

Trust in Quality

SMALLRIG stands firmly behind the quality of its products, ensuring every accessory meets professional standards. Customers receive their products promptly, which supports efficient workflows without delay. Furthermore, the 3667B reflects a commitment to craftsmanship and reliability, giving filmmakers confidence that their equipment will perform consistently across diverse projects.

Outbound References

For more details on professional camera accessories, visit SMALLRIG.
Learn about professional computing solutions at Microsoft.
Explore industry‑leading graphics innovations at NVIDIA.
Discover advanced hardware engineering insights at Intel.
Browse filmmaking gear and accessories at B&H Photo Video.
Shop professional video equipment at Adorama.
Discover creative production tools at Filmtools.
Explore camera and rigging solutions at CVP.
Check professional video support gear at Tilta.
Find lens stabilization and rigging solutions at Wooden Camera.
Explore power distribution systems at Core SWX.
Shop professional batteries and chargers at IDX System Technology.
Discover Sony camera solutions at Sony Professional.