Since David asked about this head, let me chip in:David Evans wrote:Too late for Thingy, but out of interest has anyone got or tried one of these? https://www.isarfoto.com/cms.php/_pid:2 ... odukt.html
I have two of these - I bought one to try, for my GX680 system (bulky and heavy); and found that it worked extremely well. Locks up completely solid, and no creep on lock-up either. After using it for 6 months with the GX system, I bought another to go on the legs I use for my large-format system. I've been very happy with both.
Only issue is sourcing a clamp to put on the head. I use the Arca-swiss style camera plates, and so there are a number of choices. I decided to go for the Acratech clamps. Very compact, very light, and extremely strong. Also highly recommended.