They're subtle and the props/set people have done a damn fine job of camouflaging them.
This one gets hidden inside a corner notice board.
This one's on Alexander Street and made to look like a nest.
Another gets hidden in the helmet case of a scooter. I also saw three cameras placed in the rear of a Volvo.
It seems to be a night shoot and during the day the cameras are put to rest and the opening simply covered over.
I also saw cameras hidden in air conditioner units, blue garbage bins, and fake newspaper boxes. That's a whole lot of cameras. They've been set up for almost a week now. I'd love to watch the shot actually getting filmed just to see how elaborate it actually is. In my head it's a massive thing. It'll be interesting to see the final film and see if I can spot any cameras.