How is a photo like this achieved?

Question

http://www.istockphoto.com/file_closeup/concepts-and-ideas/success/6234405-three-young-teenagers-thumbs-up.php?id=6234405

Thank you

Answer 1

There's really nothing special about this picture. It was taken with a bright light source coming from the left side and a white backdrop.  

Answer 2

With a bright, white background and a very good DSLR.  

Answer 3

That is called a high key photo.  White bright background and one light or strobe, the main light off to the left.  Notice there is not much of a "modeling" effect on the faces but you can see some shadow dropp off on the center subject.  High key portraits are used in wedding photography and glamor shots.  Very difficult to expose properly for, especially when there is a white gown or dress involved and a white background.

Answer 4

well first of all their wearing make-up. and you would have to be in a bright area with a white background.