Hi Rod, adapter is Dot-line micro 4/3's It doesn't fit tight on the af100 or the lens a bit loose but it works, it should snug up better to the body, my follow focus a cinecity unit and works good came with matt box kit.
Just picked up a AF100A and have the Proaim Matt box aswell wieghted in at 10lbs Im using a Lebeck TH-M20 tri pod
I know I need a better one but this is working out okfor now.
Love this camera.