The Tiffen 4×5.65″ IRND Soft FX Filters (Full Set) combines infrared neutral density filtration with Soft FX diffusion technology for digital cinema cameras requiring both exposure control and image refinement. The set provides multiple densities and diffusion strengths, allowing cinematographers to reduce light transmission while maintaining infrared color accuracy, softening fine detail, reducing perceived digital sharpness, and creating a smoother highlight response with a natural cinematic appearance.