PocketWizard PTMM Pre-Trigger Adapter

The PTMM can be added to the remote camera cable to pre trigger the camera, as if you were half pressing the shutter button. It will make the camera react faster when it gets a signal from the transmitting PocketWizard. If you are trying to trigger a remote camera which then triggers a remote flash, you need a total of 3 PocketWizard radios and you would use Relay mode. With Relay, the transmitting radio and the one in the camera's hot shoe need to be set to the same Channel. You would use the appropriate remote camera cable and you can use the PTMM to pre trigger the camera so it fires faster. To sync the remote flash, it needs to be set one Channel higher than the other 2 PocketWizards. The PocketWizard Wiki has more info about Relay mode. Adding a PTMM cannot replace setting the correct Channels.

Hi Christopher, actually O is off and | keeps the camera awake constantly.

Remote Release Cables from PocketWizard for Canon cameras:CM-N3-ACC: Canon, N3 terminal, controlling half-press function. This cable is required for auto-relay mode with TTL.CM-N3: Canon, N3 terminal. This has no half-press control, and is for basic remote triggering only. With a FLEX TT5, your camera will not be able to relay a TTL signal to speedlights.CM-N3-P: Canon, N3 terminal. This cable contains a pre-trigger switch. When enable, the camera behaves as if the camera's shutter release button were held half-press continuously. With FLEX TT5 your camera will not be able to relay a TTL signal to speedlights.CM-N3-ACC with MSMM Adapter = CM-N3CM-N3-ACC with PTMM Adapter = CM-N3-PI know that your cable is CM-E3-ACC, but the same is valid.Good Luck.