LOC PRO 7 FOOT & DIFFUSION: Setup and Softbox Tips

By Matphoto | Published: 2026-10-24

Category: How-to Guides

Learn how to assemble and use the LOC PRO 7 FOOT & DIFFUSION rental modifier. Get practical softbox tips for even, diffused studio lighting.

Quick Answer

Assemble the LOC PRO 7 FOOT & DIFFUSION by attaching the speed ring to your light, then stretching the diffusion fabric over the frame. Follow the steps below for a stable, evenly lit setup.

Why the LOC PRO 7 FOOT Works Well for Soft Light

The 7-foot diameter creates a large light source that wraps around your subject, reducing harsh shadows. The included diffusion fabric softens the output further, making it ideal for portraits and product shots where you want a smooth falloff.

Because it is a rental item, you get the benefit of a professional-grade modifier without the storage cost. The standard option (SKU PRO7FOOT) is ready to use with most studio strobes via a compatible speed ring.

Common Setup Challenges

The main difficulty is getting the diffusion fabric evenly tensioned. If you rush this step, the fabric can sag and create hotspots. Another issue is attaching the speed ring securely — a loose connection can cause the modifier to tilt during a shoot.

Plan for a few extra minutes during your first assembly to check all connections. Once you know the technique, setup takes under five minutes.

Step-by-Step Setup Guide

Attach the Speed Ring to Your Light: Align the speed ring's locking mechanism with your strobe's mount. Turn the ring clockwise until it clicks or tightens. Give it a gentle tug to confirm it's secure. Common mistake: Not fully locking the ring, which can cause the modifier to slip mid-shoot.
Unfold and Connect the Frame Ribs: Remove the softbox from its bag and let the ribs spring open. Insert each rib tip into the corresponding pocket on the speed ring. Work your way around in a circle to avoid bending any ribs. Checkpoint: Make sure all ribs are seated in their pockets before proceeding — a misaligned rib can pop out under tension.
Attach the Inner Baffle (If Included): If your rental includes an inner baffle, drape it over the frame and attach the Velcro corners. This layer further diffuses light and reduces hotspot intensity. Common mistake: Skipping the baffle, which can lead to uneven diffusion and harsh center light.
Stretch the Outer Diffusion Fabric: Pull the outer diffusion fabric over the frame, starting at one corner. Secure the Velcro strips evenly on all sides. Smooth out any wrinkles by tugging gently from the center outward. Checkpoint: Wrinkles or sagging fabric create uneven light — take an extra 30 seconds to smooth it fully.
Positon and Test the Light: Place the assembled softbox at your desired distance from the subject. Turn on the strobe at a low power and check the light pattern on a white wall or gray card. Adjust the angle or distance to achieve even coverage. Common mistake: Placing the softbox too close to the subject, which can cause a hot center even with diffusion.

Product Facts

LOC PRO 7 FOOT & DIFFUSION: The LOC PRO 7 FOOT & DIFFUSION is a rental item available in a Standard option with SKU code PRO7FOOT. You can rent a large, professional softbox for specific shoots without committing to a purchase, and the standard option fits most common studio lights.
LOC PRO 7 FOOT & DIFFUSION