Overview
The Kupo BF40 4” Square Tube Female is a professional aluminium frame component designed for building modular butterfly frames used in film, television, photography, and studio lighting setups. It forms part of Kupo’s interchangeable butterfly frame system, allowing crews to assemble custom-sized frames for diffusion, netting, silks, or blackout fabrics.
Manufactured from black anodised 30 × 30 mm aluminium alloy, this 1.2 m female tube section is engineered for durability while remaining lightweight for on-set handling. It connects with a matching male tube section to create complete butterfly frame assemblies in a range of sizes, depending on production requirements.
The quick-release spring pin system allows for fast assembly and breakdown, making it ideal for fast-paced production environments where efficiency and reliability are essential.
Key Features
• Black anodised aluminium construction for strength and reduced weight
• 30 × 30 mm square tube profile for professional butterfly frame systems
• 1.2 m (4 ft) female tube section for modular frame assembly
• Designed to connect with BF male tube sections for scalable frame sizes
• Quick-release spring pin system for fast assembly and breakdown
• Compatible with Kupo butterfly frame accessories and corner hardware
• Lightweight design for easy transport and on-set handling
• Suitable for diffusion, silk, net, and blackout fabric mounting
Specifications
• Model: BF40
• Type: Female square tube section
• Length: 1.2 m (4 ft)
• Tube Size: 30 × 30 mm
• Material: Aluminium alloy (black anodised finish)
• System Compatibility: Kupo Butterfly Frame system
• Assembly System: Quick-release spring pin connection
What’s in the Box
• Kupo BF40 4” Square Tube Female Butterfly Frame Section
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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