Articles by Christopher Thomas - PictureCorrect1 articles

Modern cameras are highly automatic in operation. They have auto focus and auto exposure. The camera will focus on the subject – often identified by a small circle or square at the centre of the viewfinder – and calculate an appropriate exposure by detecting the level of reflected light – usually from the same spot. A slight pressure on the shutter release will activate those two functions, without taking a picture. Further pressure on the shutter release will result in a photo being taken.