What do these Digital Camera Abbreviations mean?

I have two Toshiba HD cameras with which I want to shoot a stereoscopic 3D movie with. But they are different models. I'm not sure if that would be a problem at all, but this is where I need help. Below each of the lenses is inscribed ' f=7.0mm F3.2 ' on the one and 'f=7.2mm F3.2 ' on the other camera. Now I'm not sure which 'f' refers to focal length. But if each have different focal lengths then shooting 3D won't be really possible, or difficult. So, which 'f' refers to the focal length of the camera? I'm hoping it's the second 'f' because then they are the same and I can use them to make a nice 3D movie. Sorry for the complicated description but it's kind of hard to put it in words. Thanks