Profoto

Profoto 100509 RFi Speedring Adapter for Photogenic

5.0 (1 reviews)

Bridge your Profoto RFi softboxes to Photogenic strobes for consistently shaped, color-accurate light on every shoot.

$50.00*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The Profoto 100509 RFi Speedring Adapter exists to solve a specific problem: you own Photogenic strobes but want access to Profoto's RFi softbox line and its reliably even light output. This adapter bridges that gap cleanly, letting portrait, product, and event photographers mount any RFi softbox—square, octa, or strip—onto their Photogenic flash heads without jury-rigging or third-party workarounds. If you're building a modifier kit around the RFi system, this speedring is the piece that makes it all work with your existing lights.

Build quality reflects Profoto's usual standard. The black-finished ring feels substantial in hand without being unwieldy, and the color-coded rod insertion points mean assembly is intuitive even when you're setting up in a dim venue. The mounting interface grips the Photogenic head securely—there's no wobble or creep when you angle the softbox overhead or to the side. At 7.1 x 2.4 x 7.1 inches and 1.3 pounds, it's compact enough to toss in a modifier bag, though the added front weight is worth considering if you're working with lighter-duty stands and large octas.

Key Features

Profoto RFi Softboxes are color coded to make assembly simple

Just match the colored rod with the appropriate color-coded hole on the Speed ring.

Whether you are using a square, octagonal or rectangular softbox, set up is quick and easy

Specifications

Brand
Profoto
Model
100509
Compatibility
Photogenic Flash Heads
Softbox System
Profoto RFi (Square, Rectangular, Octagonal)
Color
Black
Dimensions
7.1 x 2.4 x 7.1 inches
Weight
1.3 pounds

Pros & Cons

👍 Pros

  • Color-coded assembly eliminates fumbling with rod placement during fast-paced location setups
  • Opens up the full Profoto RFi softbox ecosystem for Photogenic strobe owners
  • Solid mounting connection keeps the softbox firmly seated even when tilted at steep angles
  • Compact 7.1-inch profile doesn't add significant depth between strobe and modifier

👎 Cons

  • At 1.3 pounds, it adds noticeable weight to the front of your light stand when combined with a large softbox
  • Only works with Photogenic-mount strobes—won't cross-fit to Bowens or other proprietary mounts
  • Premium Profoto pricing compared to generic speedring adapters that serve the same basic function
  • Does not include a softbox, so you're buying the adapter as a separate investment

Frequently Asked Questions

It's compatible with the entire Profoto RFi softbox line—square, rectangular, and octagonal. The color-coded rod system means you use the same adapter regardless of softbox shape.
The adapter is designed for Photogenic flash heads. Confirm your strobe's mounting ring style matches the Photogenic standard before purchasing, as some older or specialized heads may differ.
Profoto's color-coded rod-to-hole system cuts setup to under a minute once you've done it a couple of times. Match each colored rod to its corresponding hole and lock down—no guessing which rod goes where.
Yes, many photographers leave the speedring mounted to their most-used softbox to speed up setup on location. The 1.3-pound weight adds minimal bulk for transport.