Profoto

Profoto 254635 RFi Flat Front Diffuser - Softbox

Profoto RFi Flat Front Diffuser delivers softer, more even light from your 1 x 1.3-inch softbox with simple snap-on installation.

$41.00*
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*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Profoto RFi Flat Front Diffuser is a dedicated light-shaping accessory designed to mount on the front face of the Profoto RFi 1 x 1.3-inch softbox. Its primary function is to further diffuse the light passing through the softbox, producing a broader, more even spread with softer shadow transitions. This is particularly valuable in portrait, beauty, and product photography where harsh highlights and abrupt shadow edges can be distracting. The diffuser introduces approximately one stop of light loss, a manageable trade-off that most photographers can accommodate by increasing their strobe output slightly.

Built to match the specific dimensions of the RFi 1 x 1.3-inch softbox, the diffuser attaches securely to the front of the modifier and stays in place during use. Its flat design maintains the softbox's existing light characteristics while adding an additional layer of diffusion, as opposed to a recessed or domed diffuser that would alter the effective size and wrap of the light source. For photographers already working within the Profoto ecosystem, this diffuser is a practical, no-fuss addition that enhances the versatility of their existing softbox without requiring a different modifier altogether.

Key Features

One Stop Loss

Additional Diffuser

RFi Flat Front Diffuser for 1x1.3' Softbox

Specifications

Compatibility
Profoto RFi 1 x 1.3-inch Softbox
Light Loss
Approximately one stop
Color
Black
Function
Diffuse light source for softer, more even illumination
Model
254635

Pros & Cons

👍 Pros

  • Produces noticeably softer and more even light spread compared to using the softbox without front diffusion
  • One-stop light loss is predictable and easy to compensate for when adjusting exposure
  • Purpose-built fit for the Profoto RFi 1 x 1.3-inch softbox ensures secure attachment without sagging or gaps
  • Lightweight and easy to attach or remove between setups

👎 Cons

  • Only compatible with the specific Profoto RFi 1 x 1.3-inch softbox, limiting use across different modifier sizes
  • One-stop light reduction requires increased strobe power, which can affect recycle times
  • As a single-purpose accessory, it adds to the overall cost of the Profoto softbox system
  • Does not provide additional diffusion options like grid control or graduated diffusion

Frequently Asked Questions

This diffuser is specifically designed for the Profoto RFi 1 x 1.3-inch softbox. It is not a universal diffuser and must be matched to the correct softbox size for a proper fit.
It reduces light output by approximately one stop, which is a moderate and predictable amount that can be easily compensated for by adjusting your strobe power or camera settings.
This is a flat front diffuser, meaning it attaches to the front face of the softbox. It functions as the outer diffusion panel that directly shapes the quality of light reaching your subject.
Yes, the flat front diffuser spreads and softens the light output from the softbox, reducing harsh shadows and specular highlights, which is particularly beneficial for portrait and beauty photography.