Ball Drop Experiment  (IR Mode)

This is  a ball drop experiment  which shows the distance travelled with any given delay settings on the DC2 Controller.


The setup is very basic as shown in the bottom centre right image, the module to the left is a Battery Powered IR transmitter and to the right is the Wireless Multi Sensor set to the IR mode enabling it to receive the  IR beam. When the ball is dropped through the beam the sequence will start. 


The WMS will send a wireless signal to the DC2 Controller, which will trigger the camera after the delay time.  Below are four shots that were taken with different delay times. The delay setting are shown on the left. 


The camera shutter will have a delay also 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 as shown below.

TECHNICAL INFORMATION

Experiment Set up IR Mode
IR Experiment various delay settings

CAMERA SETTINGS

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

TRIGGERSMART

Controller           - DC2 digital controller

Delay                  -  As above

Trigger time       - 0.2 seconds

Mode                  - Auto

Link from WMS  - Wireless

Sensor              -  Wireless Multi Sensor (WMS)

Mode                 -  Infrared beam

IR source          -  Battery IR Transmitter (IRTXB)

High speed Ball Drop Experiment  (IR Mode)

In this ball drop experiment,  as above the  distance travelled with any given delay settings on the DC2 Controller.  This is a high speed solution to removing the delay for fast moving objects


As before we have the a Battery Powered IR transmitter and the Wireless Multi Sensor set to the IR mode enabling it to receive the  IR beam. When the ball is dropped through the beam the sequence will start. 

In this configuration the external flash is connect to the DC2 AUX output and the camera shutter is opened manually.


The sequence is -

  1. Turn out all lights
  2. Activate the camera trigger
  3. Whilst the shutter is open drop the ball
  4. The DC2 will activate and the flash will go off


The WMS will send a wireless signal to the DC2 Controller, which will trigger the camera after the delay time.  Here 3  shots were taken with different delay times. The delay setting are shown below on the right set of images. The WMS radio link will cause a small delay wish is fine for most projects.


The experiment was repeated using the IRRX wired sensor connected to the DC2. It can be seen the images on the left has no delay which makes it suitable for many high speed projects.

Wired IRRX

1 Millisecond

1 millisecond

20 milliseconds

20 milliseconds

40 milliseconds

40 milliseconds

WMS Wireless

1 millisecond - wirless

1 millisecond

20 milliseconds - wireless

20 milliseconds

40 milliseconds - wireless

40 milliseconds

TECHNICAL INFORMATION

CAMERA SETTINGS

Camera              - Canon 6D

Lens                   - Canon 24-105mm

Focus and IS     -  Manual

Mode                 - Manual

Shutter speed   - 2 seconds

F number           - f11

ISO                     - 100

Drive                 - Single shot

Mirror lockup   - N/A

Shutter lag       - N/A

Flash                 - External studio flash

TRIGGERSMART

Controller           - DC2 digital controller

Delay                  -  As above

Trigger time       - 0.1 seconds

Mode                  - Auto

Sensor                - Wireless Multi Sensor (WMS)

                            - IRRX

Mode                  -  Infrared beam

IR source            -  Battery IR Transmitter (IRTXB)

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