Quick answer
To attach a softbox to a CFL light head with an umbrella mount, you need a speed ring that fits the softbox and has a stud compatible with the umbrella mount. Then slide the stud into the mount hole and tighten the locking screw.
Why a speed ring is required
A CFL light head with an umbrella mount has a simple hole that accepts umbrella shafts. A softbox, however, needs a rigid frame to hold its shape. A speed ring bridges the two: it attaches to the softbox and includes a stud that fits into the umbrella mount hole. Without the correct speed ring, the softbox cannot be secured.
Trade-off: stability vs. convenience
Umbrella mounts are designed for lightweight umbrellas, not heavy softboxes. While this method works for small to medium softboxes (up to about 33 inches), larger or heavier softboxes may cause the mount to slip or the light head to tip. For heavy softboxes, a dedicated studio light with a built-in speed ring mount is more stable.
Step-by-step instructions
- 1. Gather your equipment: You need a CFL light head with an umbrella mount hole, a softbox with a removable speed ring, and a speed ring that has a stud (shaft) matching the umbrella mount diameter (typically 8mm or 10mm). Check that the speed ring stud fits the light head's umbrella mount hole before assembly.
- 2. Attach the speed ring to the softbox: Insert the speed ring into the softbox's fabric channel. Rotate the ring until the locking clips snap into place. Ensure the ring is fully seated and the fabric is taut. Common mistake: not aligning the speed ring's key slots with the softbox's frame, causing the ring to pop out later.
- 3. Slide the speed ring stud into the umbrella mount hole: Hold the light head steady. Insert the speed ring stud into the umbrella mount hole on the light head. Push it in until it reaches the end of the hole. Do not force it. If the stud is too thick, you need a different speed ring. If too thin, use a rubber grommet to fill the gap.
- 4. Tighten the locking screw: Turn the locking screw (usually a thumbscrew or wing nut) on the umbrella mount clockwise until it presses firmly against the speed ring stud. Do not overtighten. Overtightening can strip the plastic threads. Tighten until the stud does not slide out, then stop.
- 5. Test stability and adjust: Gently wiggle the softbox. If it moves, tighten the locking screw slightly. If the light head tips forward, add a counterweight or use a heavier stand. For safety, always place the light stand on a flat surface and never leave an unbalanced setup unattended.
Product facts
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Photography Video 4 CFL Light Lighting Head wit Umbrella Mount: The ePhoto Premium Video Photo 4 light head has an umbrella mount and two on/off switches to control light output. Power cords are included, but light bulbs are not. You can use this head with an umbrella-mount speed ring for a softbox, but you must buy CFL bulbs separately.
Photography Video 4 CFL Light Lighting Head wit Umbrella Mount
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Photo Studio Umbrella Softbox NEW 33": The 33" Photo Studio Umbrella Softbox with silver reflector and blacktop is designed for in-studio and outdoor portraits. This softbox size works well with a CFL light head umbrella mount, but you still need a compatible speed ring to attach it.
Photo Studio Umbrella Softbox NEW 33"
