Sto-Fen Omni-Bounce OM-EX Flash Diffuser (for Canon 420EX / Digi-Slave DFS-1 / Kodak P-20 / Pentax AF280T / ProMaster FT-1700 / Vivitar 550FD) Fits Canon 420EX, Canon 420EXII Fits Digi-Slave DFS-1, Kodak P-20, Pentax AF280T, ProMaster FT-1700, Vivitar 550FD Fits Digi-Slave DFS-1, Kodak P-20, Pentax AF280T, ProMaster FT-1700, Vivitar 550FD Fits Digi-Slave DFS-1, Kodak P-20, Pentax AF280T, ProMaster FT-1700, Vivitar 550FD Fits Digi-Slave DFS-1, Kodak P-20, Pentax AF280T, ProMaster FT-1700, Vivitar 550FD