The Canon TC-E3 offers several options to set the start time and duration of a recording. In addition to a self-timer, there is an interval timer for recurring shots and a long exposure timer. These features allow you to, for example, document changes in a landscape over an extended period or create exposure sequences at night. The various timer functions can be used together with a preset number of shots. Maximum adjustable number: 9,999 shots. Alternatively, series without a fixed number of shots are possible. Built-in clock for shooting at a specific time. E3 connector. 2x AAA batteries.