The Manfrotto 420CSUNS Combi-Boom HD is a heavy-duty aluminum/steel 2-in-1 stand that works as a regular 392 cm light stand or instantly converts into a full 191 cm horizontal boom arm with a single lever release. Featuring double-braced legs, one leveling leg, spring-loaded boom counterbalance, 12 kg total payload and optional wheel compatibility, it’s the strongest and most versatile convertible boom stand in the Manfrotto range—perfect for overhead lighting, hair lights, or large modifiers in busy studios.
The Manfrotto 420CSUNS is the upgraded “Heavy Duty” version of the 420B Combi-Boom. With four-section aluminum column (35 mm top tube) and steel base, it reaches a towering 392 cm as a stand and converts in seconds to a 191 cm horizontal boom with smooth coaxial spring damping for precise height/angle control. Top attachment offers 16 mm socket + 3/8″ and 1/4″ threads, and optional 018 wheels can be added for full studio mobility.
Key Features
- 2-in-1 design: light stand (max 392 cm) ↔ boom arm (191 cm) in seconds
- Heavy-duty construction: 12 kg total payload, 1.5 kg at full boom extension
- Spring-loaded boom arm with smooth counterbalance
- Double leg bracing + one leveling leg for maximum stability
- Optional wheel set 018 compatible
- Black & chrome finish – no bag included
- Manfrotto 420CSUNS Convertible Boom Stand with Steel Base
- Model: Manfrotto 420CSUNS (Combi-Boom HD, no bag)
- Max Height (stand): 392 cm
- Min Height: 131 cm
- Boom Length: 191 cm (max horizontal extension)
- Payload: 12 kg (stand), 1.5 kg (full boom extension)
- Closed Length: 113 cm
- Column Diameters: 35 / 30 / 25 / 20 mm
- Leg Diameter: Ø22 mm
- Weight: 5.6 kg
- Top Attachment: 5/8″ (16 mm) socket + 3/8″ & 1/4″ threads
