You can take photos of all monuments and tourist attraction, but there is an unsaid ban on flash photography. The only place you cannot take pictures is the Kings Valley; all cameras must be left at the entrance. There is also a restriction on photography inside tombs, pyramids, and museums, once again you will have to submit all cameras at the guard’s station. If you are caught taking pictures where there is a photography ban, you can be in serious trouble. An honest officer will just ask you to erase the photos and give you a fine, in some rare cases you may have to even bribe the officer. You can take non-flash photos at the Gayer Anderson Museum. You may also be able to take photos at the Museum of Islamic Art, although there may be a camera fee applicable.
Make sure you ask the locals for permission especially the women before taking photos as you may end offending them or may even be reported to the authorities. Other than this restriction you are free to take photos and videos as long as you don't bother anyone.