I have a great Manfrotto tripod with an also great ball head, with a Manfrotto quick release function. Getting an l-plate, which is in effect an Arca Swiss plate, I wanted to exchange the Manfrotto plate for an Arca Swiss one.
Here’s what the Manfrotto plate looks like.
To do that I got an Arca Swiss plate (on the right below) and the screw and converter (on the left), both from Amazon.
I took out the screw that was in the new plate.
I unscrewed the Manfrotto plate (first picture in this post), and attached the converter to the now “naked” ball head (below).
Then I inserted the screw in the Arca Swiss plate and tightened it properly (below).
Then I was done, and below you can see my new l-plate attached.
I also added another plate to my monopod, but for that I did not add the converter and screw.
Have you done something similar?