Thailand is an extraordinarily photogenic country. You can photograph almost anything, with the exception of the interiors of some temples. This is usually clearly displayed on a notice. You can get photos and even slides developed in Thailand, with picture quality of a similar standard to Britain. The Thais generally enjoy being photographed, but do always ask permission beforehand as not everyone is always keen. This is often the case in mountain villages. Monks in temples which are frequently visited by tourists can also tire of having their photo taken. Respect any objections. In areas frequented by tourists, it may be that you have to pay in order to film or take photos.