As long as it’s a small digital pocket camera with an objective that can’t be removed it’s allowed. This camera also needs to have a wrist band attached. Selfie sticks and mobile phones you can bring to the takeoff but are not allowed during the flight.
Every pilot provides his own picture and video service with a Special Paragliding Full HD Camera System to memorise your trip. Right after the flight your pilot will show you the picture and vdeo files on a tablet computer. If you want to buy these files you either get the Original SD-Card or a copy to your mobile phone. This extra service costs CHF 40.00 and has to be paid to your pilot.