WHAT’S AN ‘INTERVALOMETER’?
An ‘intervalometer’, or ‘remote timer’, is a programmable electronic shutter release that allows you to take a sequence of many photographs automatically. Some cameras have a rudimentary intervalometer as a feature within the camera menu, while dedicated external devices and firmware add-ons boast more sophisticated settings.
When the shutter opens
How frequently the shutter opens
Shutter stays open
How many exposures the camera will make in total