Huge new challenge for me
Having just got a second flashgun opens up options and creates more problems.
Taking a photo in daylight no issues, the problem comes when using a camera onboard popup flash gun. All the light then comes from one direction and can cause unwanted shadows.
Using the camera popup flash and the seperate flashgun can only work (with Nikon that is) in what is called line of sight. In other words the remote gun must be able to detect the camera popup flash firing.
One way around this is by using a wireless flash trigger (the two small object in the photo), but with the master control on the hotshoe the popup flash is blocked from the firing "up" position, so only the remote gun fires.
Solution is a second flashgun on top of the camera sitting on the master remote unit
now light comes from 2 directions, forward and side, but still can create a shadow behind for example. There is another alternative is by using the popup camera flash and the 2 remote guns in "line of sight". So now all 3 flash, great
However they have to sync together which is one of my learning curves. May even get another remote receiver and gun later on which might help ???
So setting up at the moment all 3 to flash together, avoid causing shadows- getting subject in right position- sync together-flash speed and flash power is what I have to fathom out.
well it is something to do when I can't get outside due to bad weather