Brands Guides About
Profoto 100503 RFi Speedring Adapter for Elinchrom — main product image
Profoto

Profoto 100503 RFi Speedring Adapter for Elinchrom

Bring your RFi softboxes to Elinchrom strobes with zero compromise — fast setup, color-coded simplicity, clean light.

$45.15*
✓ In Stock on Amazon.com
View on Amazon

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

Affiliate Disclosure: Studio Supplies may earn a commission from qualifying purchases made through links on this page, at no additional cost to you. This helps support our editorial team.

Notice a mistake? Let Us Know

Overview

If you've invested in Profoto's RFi softbox line for its color-coded simplicity and wide modifier selection, the 100503 Speedring Adapter removes the brand barrier between those modifiers and your Elinchrom strobes. For photographers who rent or own across both ecosystems — or who are transitioning studios from one brand to another — this adapter means your existing RFi octas and strip boxes don't sit idle when an Elinchrom head is on the stand. The result is soft, even light with the quality and character you'd expect from RFi diffusion, regardless of which strobe is driving it.

Build quality is consistent with Profoto's accessory line — the adapter is robust and maintains a secure fit at the Elinchrom bayonet mount through repeated setups and takedowns. The color-coded rod system, a hallmark of the RFi softbox design, works exactly as intended: match the color, push, lock. On a busy portrait session or editorial shoot where you're swapping between modifiers, that system pays for itself in time and frustration saved. The black finish is neutral on set and doesn't introduce any reflective artifacts into the light path.

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

Product Type
Speedring Adapter
Compatibility
Profoto RFi Softboxes, Elinchrom Flash Heads
Assembly Aid
Color-Coded

Pros & Cons

👍 Pros

  • Lets you run premium Profoto RFi softboxes on Elinchrom strobes — a smart solution if you're building a mixed-brand kit or transitioning between systems.
  • Color-coded rod-to-hole assembly means you can build a full softbox in low-light conditions on location without fumbling or checking instructions.
  • Works across the entire RFi softbox line — squares, octas, and rectangles — giving you full creative flexibility with a single adapter.
  • Solid Profoto build quality means the adapter holds its shape session after session without loosening at the mount interface.

👎 Cons

  • Only bridges RFi softboxes to Elinchrom mounts — if you work across three or more strobe brands, you'll need separate adapters for each.
  • No spare rods or locking hardware included, so if you lose a component on location, you're without a backup from the box.
  • At its price point, it's a single-purpose accessory — useful only if you're committed to using RFi modifiers on Elinchrom heads specifically.
  • The adapter adds a small amount of depth to the mount interface, which can marginally affect the position of the light source within the softbox — worth noting for precise setups.

Frequently Asked Questions

Yes — the 100503 is specifically designed to mount Profoto RFi softboxes onto Elinchrom light sources. It bridges the two systems cleanly, so you get full access to the RFi softbox range (squares, octas, and rectangles) on your Elinchrom strobe.
Each rod on an RFi softbox is color-coded to match a corresponding hole on the speedring. You match colors and push — no guessing, no forcing rods into the wrong slots. On a location shoot where you're building and breaking down light setups quickly, that system saves real minutes.
No — the speedring is purely a mechanical mounting interface. It doesn't introduce any material between the bulb and the softbox diffusion layers, so color temperature and output remain consistent with what your Elinchrom head delivers.
The adapter is designed for Elinchrom's standard bayonet mount, which has been consistent across Elinchrom's strobe line for many years. It should work with both current and legacy Elinchrom heads that use the standard Elinchrom fitting.
The box contains the speedring adapter only. You'll need your RFi softbox and Elinchrom strobe separately. No extra rods or mounting hardware are included beyond the adapter itself.

Related Products