ABSTRACT
Tonality is the quality of tone or contrast in an image. A digital image uses 256 shades of grey to fool the eye into seeing continuous grey shading from black to white. Some films are more sensitive to certain colours than others are and these colours reproduce as lighter tones than expected. Film photographers use coloured filters to change the way film translates colours into shades of grey. Digital photographers use software to make the conversion and can adjust the balance between the grey tones after a picture has been taken. Tone and shape play a much more important role. Contrast has to be built into the image without using colour, through light and shade.
