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White rectangular softbox with recessed front diffuser and integrated speedring, 3 by 4 feet

Profoto

Profoto Rectangular Softbox 3x4' White studio

SKU CH-GMVF-5M4TY

Rectangular softbox producing soft, even light for portraits and commercial work, mounting to 100 mm heads and Profoto A-Series with OCF adapter

  • Soft, even illumination for professional portraits and commercial work
  • 3x4' rectangular shape gives versatile control for full-body or group shots
  • Integrated speedring mounts in seconds to 100mm heads and A-Series flashes with OCF Adapter
  • High-quality fabrics built to withstand frequent studio use
  • White interior diffuses light evenly for natural-looking results with reduced contrast and shadows

Professional portrait lighting

The Profoto Rectangular Softbox 3x4' White studio is a light-shaping tool built for professional portrait and commercial photographers who need broad, even illumination. Its rectangular format covers full-body shots and group portraits with flattering light. The white interior diffuses output to reduce contrast and shadows for natural-looking results. It mounts to all 100mm light heads and Profoto A-Series flashes using the OCF Adapter for fast setup.

Integrated speedring and recessed front

The all-in-one mount with integrated speedring allows the softbox to be assembled in seconds on compatible heads. A recessed front design prevents unwanted shadows and hotspots across the diffusion surface. The construction uses high-quality fabrics intended to withstand frequent studio use while maintaining consistent light quality. No separate mounting hardware is required for supported Profoto heads.

Halogen continuous-light limit

When paired with a ProHead at power level 10 (2400Ws) together with a 500W halogen continuous light at full power, a maximum of 8 flashes per minute is recommended to keep the speedring from becoming too hot to touch. The softbox is rated for halogen continuous lights up to 500W. It is not suited for photographers who need larger surface areas or different light-shaping profiles beyond this rectangular format.

Highlights

  • Soft, even illumination for professional portraits and commercial work
  • 3x4' rectangular shape gives versatile control for full-body or group shots
  • Integrated speedring mounts in seconds to 100mm heads and A-Series flashes with OCF Adapter
  • High-quality fabrics built to withstand frequent studio use
  • White interior diffuses light evenly for natural-looking results with reduced contrast and shadows

Specifications

No published specifications for this item yet.

Questions about this item

Does the integrated speedring need replacement after heavy studio use?

The speedring is built into the softbox and designed for durability; no separate replacement part is mentioned.

What power limit triggers the 8-flash-per-minute cap?

Using a ProHead at level 10 (2400Ws) with a 500W continuous light on full power requires a maximum of 8 flashes per minute to keep the speedring from overheating.

How hot does the speedring get during all-day sessions?

At the highest combined output the speedring can become too hot to touch, so the maker advises no more than 8 flashes per minute.

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