Flex Cine Hard Diffusion Panel Setup Guide
By Westcott | Published: 2026-10-19
Category: How-to Guides
Learn how to quickly attach and position Westcott Flex Cine Hard Diffusion Panels on a Scrim Jim Cine frame for softer, evenly distributed light without cross shadowing.
Quick Answer
Attach a Flex Cine Hard Diffusion Panel to your Scrim Jim Cine frame in seconds—no tools needed—to soften and evenly distribute light from your Flex mat while reducing cross shadowing.
Why Use a Hard Diffusion Panel with Your Flex Mat
A Flex Cine Hard Diffusion Panel is a 1/3-stop fabric panel that mounts directly to a Scrim Jim Cine frame. When placed in front of a Flex mat, it softens the light output and spreads it more evenly across your subject. This is especially useful when you need a gentler fill or key light without harsh edges.
The panel also reduces the possibility of cross shadowing—a common issue when two light sources overlap or when the mat's individual LED zones cast multiple shadows. The 1/3-stop loss is minimal, so you keep most of your output while gaining better light quality.
Choosing the Right Panel Size
Westcott offers three sizes: 1' x 1', 1' x 2', and 1' x 3'. The size you need depends on your Flex mat dimensions and the spread you want. A 1' x 1' panel works well for tight spots or small mats, while the 1' x 3' panel covers longer fixtures. The 1' x 2' is a versatile middle ground.
All three panels use the same 1/3-stop fabric and attach the same way, so your choice comes down to coverage area. If you're unsure, start with the size that matches your most-used Flex mat.
How to Set Up Your Flex Cine Hard Diffusion Panel
- 1. Mount Your Flex Mat on the Scrim Jim Cine Frame: Attach the Flex mat to the frame using the built-in attachment points or included hardware. Ensure the mat is flat and secure before adding diffusion. Common mistake: attaching the diffusion panel before the mat, which makes alignment harder. Always mount the mat first.
- 2. Align the Hard Diffusion Panel Over the Mat: Hold the panel so it covers the front of the Flex mat. The panel's edges should align with the frame rails. For larger mats, center the panel to avoid uneven diffusion. Checkpoint: the panel should not sag or bunch—wrinkles create uneven light patterns.
- 3. Secure the Panel to the Frame: Press the panel's attachment strips or hooks onto the Scrim Jim Cine frame. Run your hand along the edges to confirm a snug fit. The panel should stay in place without additional fasteners. Common mistake: leaving gaps at the corners, which lets hard light leak around the panel. Seal all four edges.
- 4. Test Your Light Output: Turn on the Flex mat and check the quality of light through the panel. If you see hotspots or uneven spread, adjust the panel position or try a larger size. The 1/3-stop reduction should be barely noticeable in exposure. Checkpoint: if cross shadowing persists, the panel may be too small for your mat—try the next size up.
Panel Options at a Glance
- Flex Cine Hard Diffusion Panel (1' x 1'): Durable 1/3-stop panel softens and evenly distributes light output. Quickly attaches to Scrim Jim Cine frame. The 1' x 1' size is ideal for small LED mats or tight spaces where you want diffusion without adding bulk.
Flex Cine Hard Diffusion Panel (1' x 1') - Flex Cine Hard Diffusion Panel (1' x 2'): Durable 1/3-stop panel softens and evenly distributes light output. Use in tandem with a Flex mat attached to Scrim Jim Cine frame. The 1' x 2' panel is a balanced choice for most single-mat setups, offering even diffusion without over-covering the frame.
Flex Cine Hard Diffusion Panel (1' x 2') - Flex Cine Hard Diffusion Panel (1' x 3'): Durable 1/3-stop panel softens and evenly distributes light output. Use in tandem with a Flex mat attached to Scrim Jim Cine frame. The 1' x 3' panel provides full-length diffusion for longer Flex mats, reducing cross shadowing across the entire light field.
