Lumia Quick-Folding Softbox 150cm: Setup and Light Shaping
By Red Dot Photo | Published: 2026-11-03
Category: Handleidingen
Learn how to assemble the Lumia 150cm quick-folding softbox, mount it on a Bowens light, add the grid, and shape soft portrait light without common mistakes.
Quick answer
Open the Lumia 150cm like an umbrella, lock the central joint, mount it on a Bowens-mount light, then attach the grid to control spill. Shape the light by feathering the box and adjusting distance rather than moving your subject.
Why the 150cm size changes your setup decisions
A 150cm softbox wraps light around a subject, which flatters skin and softens shadows, but it also catches more ambient light and takes up more floor space. Plan for at least a meter of clearance behind and beside the box so you can angle it without hitting walls or stands.
The quick-folding mechanism saves time on set, but the large surface acts like a sail. Always sandbag the light stand and avoid extending the stand higher than needed—especially when you add the grid, which adds front weight.
When the grid matters and when to leave it off
The included grid narrows the spread of light, which helps when you want directional portrait light or need to keep spill off a background. For a softer, more wraparound look, remove the grid and bring the box closer to the subject.
If you are shooting in a tight room, the grid can also reduce bounced light from nearby walls. Test both configurations before the session rather than swapping mid-shoot.
Step-by-step setup and light shaping
- Open the softbox like an umbrella: Hold the speed ring and push the central hub until the metal joint locks. Do not force it if resistance builds—check that fabric is not caught in the joint. Listen for the click and confirm the joint is fully seated before mounting.
- Mount on a Bowens-mount light: With the light switched off and cooled, align the speed ring’s mount with the light’s Bowens collar and tighten the locking ring. Support the softbox weight with one hand while tightening. Give the softbox a gentle tug to confirm it is locked before letting go.
- Attach the grid if you need directional light: Fit the grid’s elastic edge around the front of the softbox, starting at the top and working around. Avoid stretching from one corner to the opposite side, which can warp the fabric. If the grid sags, re-seat it evenly rather than pulling harder.
- Position and feather for soft portrait light: Place the box slightly above eye level and angled down toward the subject. Feather the light by rotating the box away until the shadow edge on the face softens, rather than moving the subject. Mark the stand position on the floor with tape so you can return to the same angle.
- Balance the stand and secure cables: Sandbag the light stand base and route the power cable so it cannot be pulled. Keep the cable slack near the head to avoid stressing the connection. A sandbag on the rear leg prevents tipping when the box is angled down.
- Collapse and store without stressing the fabric: Unlock the central joint and let the softbox fold closed slowly. Do not store it compressed under heavy gear; hang it or keep it in a loose bag to protect the heat-resistant fabric. Wipe off dust before folding to avoid grinding grit into the fabric.
Product facts
- Lumia Quick-Folding Softbox 150cm Bowen Mount with Grid (Similar to Phottix Raja): Opens like an umbrella with a centralized metal joint, so no individual rods need to be attached or removed. You can set up and tear down in seconds, which is useful when you need to reposition quickly or pack light.
Lumia Quick-Folding Softbox 150cm Bowen Mount with Grid (Similar to Phottix Raja) - Lumia Quick-Folding Softbox 150cm Bowen Mount with Grid (Similar to Phottix Raja): Includes a standard Bowens S-mount speed ring that works with a variety of lights. Check that your strobe or LED head uses a Bowens mount before buying; if it does, no adapter is needed.
