The OPTOLUTION Synchronizer controls the timing of laser pulses and our cameras. This synchronizer can be controlled directly from PIVlab (here, presets are available for the supported cameras) and thus enables very comfortable and uncomplicated PIV recordings (see video below). The oltSync Software can alternatively be used, when custom timings and more flexibility are desired.

The synchronizer has five outputs and one input (TTL), minimal pulse lengths and pulse separations of 1 µs are possible.

The synchronizer can react to external events. Currently, four modes are implemented:

• Mode 0: Internal. Uses the configured camera and pulse timings, and starts recording when 'Start' button is clicked, stops when ''image amount'' is reached.
• Mode 1: External – Double shot on rising edge. Uses the configured camera and pulse timings, arms when 'Start' button is clicked, records one double image each time trigger goes high, stops when 'image amount' is reached.
• Mode 2: External – Shoot while high. Uses the configured camera and pulse timings, arms when 'Start' button is clicked, records while the trigger input is high (and pauses when it is low), stops when 'image amount' is reached.
• Mode 3: External – Start on rising edge. Uses the configured camera and pulse timings, arms when 'Start' button is clicked, starts record when the trigger input goes high, stops when 'image amount' is reached.

Data sheet and instructions can be found on the right-hand side.