According to the material, what is the maximum ISO often used for consumer film?

• A. 800
• B. 3200
• C. 100
• D. 1600

Answer: (A)

Understanding film speed (ISO) is key here: it tells you how sensitive the film is to light. Higher ISO means you can shoot in dimmer conditions without extra light, but it also brings more grain. For standard consumer film, you generally work with speeds that balance grain and light conditions. The material notes that 800 is the maximum ISO often used for consumer film, meaning photographers typically reach up to that sensitivity to handle ordinary indoor or low-light situations without moving to specialty stocks. Speeds like 100 or 200 are common for bright daylight and produce finer grain, while much higher speeds (3200, 1600) are less typical for everyday consumer film because the grain and noise become excessive. So, 800 stands out as the practical upper limit commonly seen in consumer film.