Can someone explain how JAV is filmed with a real-time screen depiction off-camera?

[blueredder]

So I noticed in one of my videos that while the actress is performing on camera, there is a television caught in view that was depicting the sex act being filmed. That is, while she was pumping her man, the television was showing exactly what the camera was filming.



I'm quite sure the camera was showing exactly what was being filmed, and it was not a pre-recording she was watching as a guide.



This went on for a few seconds until someone off-screen pulled the TV set away from the camera's view.



I assume that was a mistake on the cameraman's part while trying to focus directly on the performers' activity, so maybe someone off-screen was alerted to the TV and took it away from the camera view.

So, I don't recall hearing it being rolled away, but I assume that's because the camera and recording is focused on whatever is being filmed and small sounds off-camera don't get caught on film.

Now my question is how does the TV's depiction play a role in the filming? Is it to show the director and crew what's going on in real-time to make sure it's filming as they want it to be?

 

[twenie]

...

Now my question is how does the TV's depiction play a role in the filming? Is it to show the director and crew what's going on in real-time to make sure it's filming as they want it to be?

Could be.

If you ever watched Furasupi/Knights Visual video, you see that the actress is often taken to the director's room (I suppose) with a couple of screens showing there. Both in KV or other studio's movies, the actress could then have sex with the director when she's there - you can find it on older KV videos. I also remember that a couple of MOBSTERS's old videos have this act.

 

[EroMura777]

Is it possible that the same camera that is used for recording sends the same signal to the TV as security cameras do?