Ilford Delta 100 Professional is a medium-speed, panchromatic black and white film with a nominal sensitivity ISO 100/21 °. Extremely fine grain and superior sharpness are features of Delta 100. Refined "core-shell" crystal technology enables exceptional image quality with excellent sharpness and fine grain. The film is easy to expose and process. It is ideal for pictorial photography and artistic photography. Its exposure latitude gives good results within an exposure range of EI 50/18 to EI 200/24. Enlargements of this film are particularly fine grain and extremely sharp.