Quick Answer

To attach a softbox to a Broncolor or Visatec light, use a compatible speedring insert like the Fotodiox Pro 152mm model. This guide walks you through the installation process and highlights common pitfalls.

Why a Dedicated Speedring Insert Matters

Not all speedring inserts fit Broncolor mounts. The Fotodiox Pro 152mm insert is specifically designed for Broncolor (Impact), Visatec, and compatible light modifiers. Using a mismatched insert can damage your softbox or light source.

The all-metal construction of this insert ensures durability and a secure connection, reducing the risk of accidental detachment during a shoot.

Step-by-Step Installation Guide

  1. 1. Identify Your Softbox Mount Type: Check the back of your softbox or beauty dish for the mount ring diameter. Measure it if unsure—most Broncolor-compatible modifiers use a 6-inch (152mm) opening. Common mistake: Assuming all softboxes use the same mount. Always measure before purchasing an insert.
  2. 2. Insert the Speedring Into the Softbox: Align the Fotodiox Pro 152mm insert with the softbox's mounting ring. Push it in firmly until the locking tabs or screws engage. For softboxes with a pin-lock system, rotate the insert clockwise until it clicks. Checkpoint: Ensure the insert sits flush against the softbox fabric. A gap can cause light leaks or instability.
  3. 3. Attach the Softbox to Your Light Source: Slide the assembled softbox onto your Broncolor or Visatec light head. Twist or lock it into place according to your light's mounting mechanism. Test the connection by gently tugging the softbox. Common mistake: Overtightening can strip threads or damage the insert. Hand-tighten only.
  4. 4. Verify Secure Fit and Test: Power on the light at a low setting and check for any wobble or misalignment. Adjust if necessary. A properly seated insert will hold the softbox steady even at extreme angles. Final checkpoint: If the softbox feels loose, remove it and recheck the insert alignment before tightening again.