FAVI BB100200 Projector Ceiling Mount 100-200cms Drop Adjustable - Black

The bracket that mounts to the wall, does it swivel there? I need one that swivels 90 degrees.

is that work with optoma hd26 ?

Has anyone tried this with an Epson Home Cinema 8350?

How large is the mounting plate which attaches to the wall and how far apart are the holes ?