Gitzo R. No.4b headThe Gitzo R. No. 4b head is an old school all metal tripod head with three way adjustment. Not light or especially modern looking, but sturdy. This one has good locks and a shorter top plate with an open slot for the camera mounting thread. The open slot is a factory thing, not a modification, so dont panic! Very long control arms and solid metal construction make this head suitable for larger format cameras. In very good condition, with some cosmetic