Barndoor Godox BD-04 photo studio flash unit accessory

The Godox BD-04 is a compact accessory set for studio flash units that installs on a standard 7" (17.8 cm) reflector. The kit includes a four‑leaf barndoor, a honeycomb grid and four color filters, providing precise control over light direction, shape and background color while maintaining a professional black finish.

Advantages

The adjustable four‑leaf barndoor allows flexible shaping of the beam and limits light spill. The honeycomb grid converts the strobe into a more directional, specular light source for controlled highlights and focused illumination. The four color filters attach to the barndoor to change background color or correct color balance. The BD-04 is compact and simple to mount on standard reflectors, enabling quick setup in studio environments.

Suitable for

• Studio portrait and product photography
• Controlling light spill and shaping highlights
• Creating colored background effects
• Use with standard 7" (17.8 cm) reflectors on strobe heads

Key specifications

• Model: Godox BD-04
• Compatible reflector diameter: 7" (17.8 cm)
• Contents: 4‑leaf barndoor, honeycomb grid, 4 color filters
• Finish: black
• Manufacturer MPN: BD-04
• EAN: 6952344206072

How to use

Mount the BD-04 onto a standard 7" reflector attached to your strobe head. Adjust the four barndoor leaves to shape the beam and reduce unwanted spill. Fit the honeycomb grid when a narrow, directional beam is required. Attach the desired color filter to the barndoor when you need background color or to alter color balance. Make final adjustments to barndoor leaf positions and strobe angle to achieve the intended lighting effect.

Recommendations

For best results, use the grid when you need a concentrated beam and the barndoor for partial flagging or side control. Combine filters with careful exposure and white balance adjustments to achieve accurate or creative color results. Ensure the accessory is securely mounted before operating the strobe.