Re: Tripod Head Confusion
I have no idea what that head is supposed to do, what do the knobs do? I use a ball head and can angle pretty much any way I want without hassle. If you can, get a ball head, quick and easy.
Re: Tripod Head Confusion
The knobs allow tilting of the head/camera in a variety of positions. That works fine but the camera to head interface slips. gt
Re: Tripod Head Confusion
I'd say sink some money into a decent ballhead rather than another $2k+ lens. If your current problem is not being able to reliably change orientation for your shoot, then solve that one first!
I use the Arca Swiss Z1 mentioned on this site's reviews.I really enjoy the flexibility and control. I can have the 70-200 2.8 mounted and very easily loosen and manuever the body freely (and in a very controlled way). The same goes for any other weight combinations that I've tried. The mounting ring (as far as I know) is more about centering the weight of the lens/body combination rather than giving you the ability to make plane changes. I have the ring set tight and move the tripod head around - since that is what the tool is for.
Once you do get up into the longer lenses though, a Gimbal head would make you more agile.
(of course once you have that solved, there no need to ignore the want for the 500mm)
ze