Foto&Tech Large Size 8" x 10" Waterproof Premium 3 Card Set -White Balance/Exposure Card 18% Gray Card Set for Digital and Film Photography Includes three color calibrated reference cards: White, Black & Neutral Grey Cards For perfect color balance, each card 8" x 10" waterproof plastic Works with any camera JPEG, RAW, film or digital Dependable performance and accuracy Great size, easy capture the custom white balance picture