Tiffen 3×4 Inch Black Diffusion FX 4 Optical Filter

Tiffen 3×4 Inch Black Diffusion FX 4 Optical Filter | 34BDFX4

The Tiffen Black Diffusion FX 4 is a 3 x 4 inch optical filter offering heavy diffusion for strongly stylized looks, engineered to soften aggressively while retaining black density and image structure.

Grade 4 pushes the Black Diffusion FX effect toward bold territory, melting fine texture and giving faces and surfaces a smoothed, painterly quality. Even at this strength, the design resists the milky shadows and blooming highlights of conventional heavy diffusion, keeping the image usable and intentional. It fits standard 3 x 4 matte boxes for cinema and broadcast camera systems.

• Black Diffusion FX filter, strong grade 4, 3 x 4 inch
• Heavy softening with preserved blacks and contrast
• Painterly, stylized rendering for bold creative choices
• Compatible with standard professional matte boxes