F&V MDF-1 Milk Diffusion Filter Frame (allows use of barndoors with diffuser)F&V MDF 1 Milk Diffusion Filter Frame (allows use of barndoors with diffuser) F&V SKU: 10316002 Helix SKU: FV10316002 Overview The MDF 1 Milk Diffuser Filter Frame is a Milk Diffuser with metal frame which you can attach barn doors (sold separately). The frame snaps into the new quick release mounting system from F&V. Compatible with the Z400S Soft, K4000 SE, K4000S SE, K4000 Power, and K4000S Power. Older lights are compatible once their corners have