So I bought some pocket wizards :)

[kkl7040]

Hey all, I've been kind of a lurker on the forums and just picked up some pocket wizards that were delivered today - 2 flex TT5s and a TT1. I'm still stuck at work so haven't had the chance to play with them too much.


Aside from getting the flash off camera, I was hoping to set these up to remotely trigger my camera. Ideally, a TT5 on the camera, a TT5 with the off camera flash, and the TT1 for use as the remote trigger. I have a t2i and believe i need a pre-release cable such as this one: http://www.amazon.com/Fotodiox-Pre-Trigger-Cameras-Shutter-PocketWizard/dp/B004FL95SI/ref=sr_1_3?ie=UTF8&s=electronics&qid=13037 53361&sr=1-3


I was hoping someone had experience with this. If they're all on the same channel, i'm unsure if the camera will trigger fast enough to catch the shot. I read on one sight that you would need 2 PWs on the camera, 1 on 1 channel for the shutter release and 1 on another channel for the flash...i hope this isn't the case! I also wonder if the TT5 is smart enough to use 2 channels, one for the flash and one for the shutter release. If anyone has any experience or links to sites explaining this in deatil, i'd really appreciate it!


Thanks--kurt

[Sean Setters]

I've done something similar with Cybersyncs. To fire my camera and flashes using Cybersyncs, I...


1) Attached a CSRB receiver to a motor cord which was attached to the camera's remote port (much like the one you linked to, except I purchased mine from FlashZebra).


2) Set a CST trigger to the same channel as the CSRB receiver connected to the camera. This was handheld and used to fire the camera.


3) Set another CST to a different channel and placed it in the camera's hotshoe.


4) Set the CSRB receivers connected to my flashes to the same channel as the CST transmitter placed in the camera's hotshoe.


I believe I could have used another CSRB receiver set to relay mode (using the same channel as the CSRB connected to the camear) to trip the shutter. However, I had two CST transmitters, so it was just easier to do it with them.


Result?

[kkl7040]

Hey sean, i

[Sean Setters]

For the earliest shot like this in my flickr stream, I used a Fat Gecko camera mount. For this particular shot I used an Avenger F1000, umbrella swivel, and quick release plate to secure the camera to the car. To be honest, I think a heavier duty suction cup would be best (or the use of two of them and a magic arm or something).

[kkl7040]

OH i think i found it:


www.pocketwizard.com/.../auto_relay_mode


looks like i can hook up my flextt5 to my computer and configure the tt5 to do exactly what i want:


Step One


Slide the FlexTT5 into the camera

[Sean Setters]

That's pretty neat.

Another thing I've been trying to figure out is how different aperture/shutter/iso's changes the exposure of the 'non-flashed' area of the image. Any rules of thumb with respect to this?

Changing the aperture or ISO will affect the ambient and flash exposure equally. Changing the shutter speed (up to the max flash sync speed) will only affect the ambient exposure. This is because the entire flash pulse is captured up to the max sync speed (let's say 1/250 second). In other words, the amount of flash captured in the exposure will not change up to the max sync speed. However, you'll be taking in a lot more ambient light at 1/30 second than you will at 1/250 second.