I recently bought a secondhand Manfrotto tripod complete with 168 ball head, and 029 pan and tilt head.
There are two things I do not understand.
Hopefully some one here can enlighten me.
On the pan and tilt head is a screw hole just above the horizontal pivot.
Pictures on the internet show a chrome, knurled screw inserted into what seems to me to be a blind hole. I wonder if an accessory bracket may screw into the hole. Just a guess.
The other unknown is a hole drilled into the tripod about half an inch away from the spirit level bubble.
The hole also has a slot cut across it. It looks similar to the symbol put on the top plate of some cameras to mark the film plane.
Thank you in advance to anyone who can reveal the functions of these two oddities.
There are two things I do not understand.
Hopefully some one here can enlighten me.
On the pan and tilt head is a screw hole just above the horizontal pivot.
Pictures on the internet show a chrome, knurled screw inserted into what seems to me to be a blind hole. I wonder if an accessory bracket may screw into the hole. Just a guess.
The other unknown is a hole drilled into the tripod about half an inch away from the spirit level bubble.
The hole also has a slot cut across it. It looks similar to the symbol put on the top plate of some cameras to mark the film plane.
Thank you in advance to anyone who can reveal the functions of these two oddities.

