Filming is something I'll pay extra for and I have filmed with quite a few people, mostly pornstars, who all allow full face filming. Never had any issues in sorting out when it's been a first ever meet. All of them have definitely played up for the camera.
Somewhat differently I don't use it as wank fodder. Whilst I have the storage safely stored offline, I rarely if ever look at it again after a brief review after the footage. I get my enjoyment more during the session whilst I'm filming / being filmed even though the focus is mostly on the girl or girls