Behind the scenes
It’s popular to show some outtakes or making-of type behind-the-scenes videos and images. In many cases this needs a separate camera operator to capture this while the action takes place. I had a thought about using Linked Shot with the Speedlite 600EX-RT and ST-E3-RT to take a few behind the scenes pictures for me at a recent studio shoot.
Set the main camera – Linked shot master
I used an EOS 6D and EOS 5D Mark III for the main pictures of the models – the actual photos I was there to take. Since the studio lights can be triggered by a single pulse of flash I used the Speedlite 600EX-RT on the camera and set it to work as a Linked Shot Master but also to fire during the exposure. You need to set P.Fn 07 to 1 on the Speedlite to enable firing in Linked Shot mode, if you don’t the Speedlite won’t send the pulse of light to trigger the studio lights. I set the Speedlite in manual mode and 1/32 power. Aiming it away from the subjects to reduce the chance of the Speedlite affecting the studio light exposure.
Set the slave camera – Linked shot slave
Taking my old and trusty EOS 7D, I fitted an EF-S 10-22mm f/3.5-4.5 USM lens and pushed the ISO all the way to ISO to 6400. It was dark in the studio and the EOS 7D would not get the light from the main studio flashes. I added a Speedlite Transmitter ST-E3-RT to the hotshoe and then connected the SR-N3 Speedlite Release Cable between the ST-E3-RT and the cameras remote release connection. I set the ST-E3-RT as a Linked Shot slave then whenever I took a picture with the EOS 5D Mark III or EOS 6D then the EOS 7D was capturing a behind the scenes image just after the main exposure. Due to the slight lag the EOS 7D only gets the light from the modelling lights to work with not the flash.
I had to use the SR-N3 with the EOS 7D, though the EOS 5D Mark III, EOS 6D, EOS-1D X and EOS M can be triggered via the hotshoe connection without using the SR-N3 cable.
I soon realised that I needed to set the EOS 7D to stay awake a bit longer by changing it’s auto power off setting. Without doing this, the problem is the camera goes to sleep and then the ST-E3-RT shuts down. Result is no radio link and hence no triggering of the shutter on the EOS 7D. It’s also really useful to sync the time on the cameras 🙂
Automatically captured behind the scenes picture
Main camera picture
Find out more about using the Linked Shot to trigger multiple cameras using Speedlites