AstroFlashTimer provides precise timestamp flashes from the camera LED for astronomical videos (primarily asteroidal occultation recordings). Just point the camera flash into the optical path of the video recording device and trigger the desired flash mode.

Four separate flash modes offer flexibility for time stamping video captures.

  • Flash Now - flashes the camera LED at the start of the next UTC second. Duration of the flash can be set by the user.
  • Flash At Time - flashes the camera LED at the exact time specified by the user. Duration is the same as the Flash Now duration.
  • Flash Series - produces a series of camera LED flashes with user specified flash duration, number of flashes and time interval between flashes.
  • Flash PPS - produces a sequence of "Pulse Per Second" camera LED flashes. Each flash starts at the next UTC second.

A pre-flash feature is optional to initialize the camera's flash system and reduce the delay between scheduled flash time and actual flash time.

The flash time is logged in local time and UTC, along with local date, latitude, longitude, elevation and flash number. An event title and a comment are also logged with each flash. The resulting log can be shared by email, messaging, copying to Notes and more.

Preferences provide a switch to turn the Pre-Flash feature on and off, an LED intensity control and a flash offset adjustment field.