I have a Ann older canon fd 50mm 1.8 and a Sony a6000. Is this meant for that?
Yes the FD-NEX adapter is what you need. I also have a a6000 and a Canon FD 50mm , 28mm, and a 300mm and they all work well with this adapter.
Yes indeed and it works like a charm. All your "FD" lenses (if you have more) will work on your Sony DSLR with this adapter. I have a few K&F Concept Lens Adapters for my lenses (Canon, Nikon, Tokina, etc.) and they all work flawlessly.