Optitrack 18 cameras - Truss Structure Doubts

[Leanndro]

Hello guys,
We built a truss structure in a C shape to hold the cameras for an 18 cameras system setup (see the following image: Truss Structure Prototype). We need a capture volume of 3.65m x 3.65m. Your support recommended to us a setup area of 7m x 7m with four 4.5mm lenses on the top corner cameras. Would this be the ideal setup? What would be the best height for the top cameras?
We can see on the image of the 18-camera truss setup that there are 8 lower cameras. We're worried because one of these cameras, the one that the actor will be facing to, will have to be positioned elsewhere. The actor will be throwing objects that might hit that camera. Would we lose too much data if we put it at the same height as the top ones? What could be the best solution to setup the front cameras in this case?

Thats it for now,
Thanks
Leanndro

[VincentG]

Actually that should be fine. The setup looks like it would calibrate and work very well.