This is a sound sensor experiment which shows the drawing pins being dropped, Various delay settings are used to get the best effects.
The setup is very basic as shown in the lower right right image, the module to the right is the Wireless Multi Sensor set to the SOUND mode. When the tacks are dropped the sound of the tacks hitting the base will start the sequence.
The WMS will send a wireless signal to the DC2 Controller, which will trigger the camera after the delay time. Here 2 shots were taken with different delay times. The left is 20mS and the right is 1mS delay.
In practice the Sensor will pick up th first tack to hit the base. The camera shutter will have a delay which will vary dependant on the camera settings and camera model.
In this sequence to reduce the delay the auto-focus and image stabilisation was OFF and the mirror was up. Other techniques can be employed to eliminate the delay totally,such as using the camera 'B' mode with an open flash.
Camera - Canon 6D
Lens - Tamron 90mm Macro
Focus and IS - Manual
Mode - AV
ISO - 100
Drive - Single shot
Mirror lockup - Enabled
Shutter lag - Estmated 30 milliseconds
Flash - Canon ring flash
Controller - DC2 digital controller
Delay - As above
Trigger time - 0.2 seconds
Mode - Auto
Link from WMS - Wireless
Sensor - Wireless Multi Sensor (WMS)
Mode - Sound(SND)