TL;DR: Ask everyone who you can see in your lens for their permission before taking a picture or video! If someone asks you to delete a photo they might be in, or put away your camera, please do so!
Each congress is a huge social event, a great time many people want to remember and share with their friends. Thanks to smartphones and social media, photography in public places increases year after year.
Some of you in attendance may be very accustomed to environments where taking pictures and videos in public areas is common place. The 30C3 is not one of those places. For a variety of reasons, including privacy, many people attending the 30C3 will not want to be photographed in any way.
Therefore, before raising your camera to take a picture or record a video, we kindly remind you to explicity seek the permission of all those who may be present in your image before shooting.
If anyone objects to your photography after the fact, please be courteous and offer to delete any pictures or video on your device and refrain from taking more pictures at that moment.
This has been a tradition at the congress since before the first cameraphone! You may even see people wearing “Keine Bilder!” t-shirts and hoodies. This means “No Photos!” and we ask that you continue to respect this tradition at the 30C3 no matter what you may be accustomed to elsewhere.
Of course we love seeing pictures of the congress everywhere and we don’t want to stop you from preserving your own special memories. However, please keep the rights of your fellow attendees in mind!