United has added two more artists to its growing list of concert recordings: popular Dutch singers Frans Bauer and Lee Towers, who both managed to raise the roof of Rotterdam's newly refurbished Ahoy stadium on two consecutive nights.
The first to perform was Frans Bauer, on Saturday.
The stage at the Ahoy was in the centre of the stadium, which made it tricky for the cameras, since the singer was turning in different directions all the time.
The problem was solved by laying a 90-meter track right around the stage, with four cameras moving along it; an added advantage to this set-up was that fewer cameras were needed in the audience, which was handy since the concert was sold out before the cameras were arranged.
All 12 cameras, including a Techno 50 crane and a Steadicam with RF camera, relayed images to the OB15.
Lee Towers, with his tremendous career behind him, gave two spectacular farewell shows, both of them sold out.
Some of the cables could stay where they were after the Frans Bauer concert, but most of them had to be re-laid.
Again, the stage was in the centre of the stadium.
Four huge overhead TV screens ensured that the audience could always see the singer's face, while cameras travelling back and forth on 120 metres of track followed his every move.
14 cameras were employed from the outset, including a crane in the stands and a Steadicam.
A special production unit was set up in the OB15 for the four TV screens.
Originally, this unit was to have made use of the recording cameras, but at the last minute a budget was found for three extra cameras for the TV screens, providing spectacular close-up shots.