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White fabric diffuser panel with black binding edge, folded inside a soft carry pouch

Profoto

Profoto 3 ft Octa Softbox Diffuser Kit 1 f-Stop

SKU CH-404R-M1PC5

Diffuser kit softens light and reduces harsh shadows for Profoto 3 ft Octa, 2x3 ft Rectangular, and 1x4 ft Strip softboxes, includes soft pouch

  • Soft, even illumination with 1 f-stop diffusion
  • Fits Profoto 3' Octa, 2x3' Rectangular and 1x4' Strip softboxes
  • High-quality fabrics withstand frequent professional use
  • Includes soft pouch for protected transport and storage
  • Doubles as neutral density filter for low-aperture or long-exposure work

What the Kit Adds to Your Softbox

This 1 f-stop diffuser kit fits Profoto 3' Octa, 2x3' Rectangular and 1x4' Strip softboxes, delivering softer, more even illumination that reduces harsh shadows. It also functions as a neutral density filter for low-aperture or long-exposure work. A soft pouch is included for transport and storage.

Consistent Output During Extended Sessions

The high-quality fabric construction maintains diffusion performance under continuous studio or location use without degrading. Quick attachment and removal let you adapt the light character between setups while the material resists wear from repeated handling.

Upgrade Path from Bare Softbox Output

Replaces the single stock diffuser to give adjustable softness and ND capability in one kit. The jump is worthwhile when you need finer control over shadow quality or exposure flexibility without adding separate filters. Not suited for shooters who never vary diffusion strength or who require diffusion densities other than 1 f-stop.

How it compares

Measured against everything we stock in Photo Lighting & Studio Flashes, at today’s prices. Recalculated every night.

Price $65.99
Typical for this category: the median of 3,696 items is $57.99.

Specifications

No published specifications for this item yet.

Questions about this item

Does the 1 f-stop diffuser kit generate any noise or heat during extended studio sessions?

No — it is a passive fabric accessory with no electronics, so it produces no noise, heat or power draw.

Which Profoto softboxes must I already own for this diffuser kit to fit?

It is made for Profoto 3 ft Octa, 2×3 ft Rectangular and 1×4 ft Strip softboxes.

Will the 1 f-stop diffuser work with my older Profoto softboxes that already include a 1 f-stop diffuser?

Yes — it replaces or supplements the original diffuser on any compatible Profoto softbox model.

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