Parks College Parachute Research Group
Tongue Switches for Canon EOS Digital SLR
The part numbers of the components used on these assemblies are specified in
the graphic file, so little text is needed. This switch assembly may also
work with other cameras. The switches are not 2 position switches, operating
the focus and then operating the shutter release. Both actions are taken at
once when the switches are pressed.
Simple Tongue Switch
Various "Tactile" Switches
Tongue Switch based on Football Mouth Guard
Notice/Disclaimer: This circuit has been provided as a service to
those skydiving videographers who wish to construct their own camera tongue switch
It has been observed to work under certain specific conditions, but has not been
tested under all conditions that may arise while photgraphing skydiving.
It is extremely important that those who use this and other similar devices
must not focus their attention on the switch to the extent that it causes them
to lose awareness of their surroundings, situation, and altitude while skydiving!
For questions or comments about this circuit contact Gary Peek: