Hi Paul, the whole thing looks a bit ordinary in the pic, it dose come up better in real life.
Anyway it is a smidge over 500mm, and the 3 holes you see in the top part are exactly the same as the bolts that go into the G11 Mount.
Just point one South, and the you have 7 degrees to play with either way.
The top circular part is exactly the same size as the mount base, 140mm.
I have done about 4 different models and they all work beaut.
My own G11 is mounted on one and, trust me mate it wont move.
Talk to you soon.
Leon
