Overview
The Kupo KS-404 Dia. 26mm Ball with 1/4"-20 Male Thread is a professional modular mounting component designed for use within the Kupo Super Knuckle system. It is commonly used in film production, television, photography, and studio environments for building flexible rigging setups for cameras, monitors, lights, and accessories.
Constructed from CNC-machined aluminium with a black anodised finish, the KS-404 features a 26 mm ball joint paired with a 1/4"-20 male threaded steel stud. This allows it to connect directly to standard camera and accessory mounting points, while also integrating into compatible Super Knuckle shells and articulating arm systems.
The design includes a round support base that improves stability when mounting cameras or accessories, helping distribute load more evenly. The knurled tightening knob (depending on configuration) allows secure hand-tightening and adjustment for different thread depths, ensuring reliable fixation during use in production environments.
Its compact and lightweight construction makes it suitable for portable rigs as well as fixed studio setups where precise positioning and quick adjustments are required.
Key Features
• Professional 26 mm ball joint mounting adapter
• 1/4"-20 male threaded steel stud
• CNC-machined aluminium construction
• Black anodised finish for durability
• Compatible with Kupo Super Knuckle systems
• Round base design for added stability
• Lightweight and compact for portable rigs
• Suitable for cameras, monitors, and accessories
• Designed for film, TV, photography, and studio use
Specifications
• Model: KS-404
• Product Type: Ball Mount Adapter
• Material: Aluminium (ball body), steel (threaded stud)
• Finish: Black anodised
• Ball Diameter: 26 mm
• Thread: 1/4"-20 male
• Weight: approx. 48 g
• Application: Modular mounting for grip and rigging systems
What’s in the Box
• Kupo Dia. 26mm Ball with 1/4"-20 Male Thread (KS-404)
Why we stock it
Hand-picked for its build quality, service backup, and on-set reliability. Talk to our team for kit-list recommendations.
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Technical specifications
Detailed specifications available on request.
Need help speccing this?
Our team has rigged, gaffed, and shot with this fixture. Tell us about the production and we'll talk through the modifier set and accessory list.
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Local support, in-house workshop
Every fixture we sell is backed by a 24-month warranty, fully serviced from our Johannesburg workshop. We stock genuine spares and can usually return a unit to service within 5 working days of intake.
Our technical team has run the original manufacturer training courses in South Africa — if you need help configuring DMX, integrating with a CRMX system, or troubleshooting on location, we're a phone call away.
Need it on a job tomorrow?
We hold flagship cinema fixtures in walk-in stock. Order before 11:00 for same-day Johannesburg dispatch — or come collect from our showroom in person.
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