Canon F1-N manual Setting the ASA/ISO Film Speed

7SETTING THE ASA/ISO FILM SPEED

7Setting the ASA/ISO Film Speed

Turn the setting dial, while pressing the lock release button, until the desired film speed aligns with the index. The dial cannot be turned lower than ASA6 or higher than ASA6400. The table on the next page shows the ASA/ISO film speeds which can be set on the New Canon F-1. Figures in parentheses are intermediate speeds which are indicated by dots on the ASA/ISO dial.

ASA/ISOis a numerical rating of the film’s sensitivity to light. The higher the num- ber, the faster the film and the more sensitive it is to a given amount of light as compared to a film with a lower number. The film manufacturer’s ASA/ISO rating can be found on the film cartridge, the carton, and the data sheet.

15