Designed for enhancing black and white photography, also suitable for color imaging Medium yellow filter for accurate tonal range contrast and natural sky depiction Yellow 8 variant ideal for capturing natural clouds against blue skies Yellow 12 'Minus blue' variant excels in reducing haze in aerial work and astrophotography Recommended filter for use with Kodak Aero Ektachrome Infrared film Yellow 15 variant provides more dramatic effects for landscapes, marine scenes, and aerial photography