公演中の撮影は禁止だが、、

12. Householder's rights
12.4 Mobile electronic devices, pagers and acoustic signalling devices of any kind can only be taken into the auditorium if they are turned off.
13. Prohibition of image or sound recordings

The creation of images or of sound recordings of any kind in the auditorium is prohibited, not least for reasons relating to copyright. Violations may lead to claims for damages or measures in accordance with paragraph 12.1.

14. Audiovisual recordings and photographs taken by BF or third parties
14.3. The procurer of the ticket and the visitor of performance are aware that both in the festival house and on the festival grounds photographs and audiovisual recordings can be made by other visitors which could render the visitor recognisable as a visitor of the performance. BF is not liable for such recordings or photographs; this is particularly valid in the case that such recordings or photographs are made publicly accessible in the Internet (e.g. social media platforms such as Facebook etc.). The regulations of paragraph 13, as well as any rights or claims of the involved visitor against third parties who have taken such photographs or made such recordings and/or made these publicly accessible, remain untouched.
再度聞くべきでしょう。本当に、屋外、庭とかの記念撮影用の機械もダメなのか。