ABSTRACT
The technical side can have as great an influence on the look of the final image. Lens-less photography pinhole photography has a following as it produces a unique look where everything is in focus from near to far. Lenses make photography unique in particular their ability to focus and de-focus. While there is a technically correct exposure, there is also a subjective choice of exposure that can darken or lighten an image with under or overexposure. The depiction of tones and their distribution in the image produces what photographers describe as tonality. The key light in a portrait sets the character or the mood of an image hence the use of this word. A high-key image is predominantly composed of lighttones - low-key refers to an image composed largely of darkertones; these are not the same as under- and overexposed images as both still have a full - if dramatically skewed - tonal range.
