Portraiture is all about the power of the portrait. Either a person, scenery, creature or other things can be used in a portrait picture and capturing a portrait picture is done in a single frame. Portraits can be edited. For example, a photographer will take a picture of someone and do it to what they want but the photgrapher can edit it to the way that they want the picture. An example of a picture like this is a photo of a pope by Diego Valazquez, which was re-created by Francis Bacon. The picture is originally just a natural photo turned much more sinister and darker.
Context
Portraits are found in yearbooks, art gallery's, books and museums. Also on stamps and money there are portraits of the queen. Also when you take your picture for identity of yourself, it is known as a portrait photo of yourself. They are also seen in many museums due to the popularity of portrait photos.
Techniques
When doing portraiture photos there are many techniques the photographer uses. One technique is to have the person standing up straight or sitting down and just basically being very posed. This can either show the whole body or just a certain part of the body, like a head. There is usually only one person in a portrait photo as when people say portrait it automatically makes me think that is only for one person. For example when you have passport photos taken, you are alone and that is called a portrait photo. They also tend to make the photo's black and white to make them look unique and sophisticated. Sometimes in portrait photos they are unsuspecting. For example it will be a photo of a few people and they dont know it is being taken. Also when they use lighting in portrait photos this makes the person in the photo feel as if they are powerful as the light is put on them to make them stand out.