Tone definition

Tone definition- 

The lightness, brightness or value of a patch in a photograph.Dark tones correspond to shadows,light tones correspond to bright or highlight areas. Slight overall colour cast or hint of colour in a print or part of image that should be neutral e.g. green tone in Fujichrome blacks.
Tones are created by the way light falls on a 3D object. The parts of the object on which the light is strongest are called highlights and the darker areas are called shadows. There will a range of tones in between the highlights and shadows.Without tone Form does not exist, tone is therefore an important aspect in the visualisation of 3D objects.

In this photograph there is multiple areas with shadows and various areas that are more highlighted to others, this is where there is more light shinning through the clouds in the photo. the shadowed area is the area where the clouds are casted, which then blocks the sunlight from reaching the buildings so therefore they are blocked out. This photo is also in black and white which adds to the shadows and highlights as the shadows may appear darker tun others so this creates contrast within there photo.

The zone system- Ansel Adams

Black and white photography:

In the absence of colour our ability to create a narrative (story) in image is restricted

This is viewed as an advantage to practitioners of Black and white photography
Particular attention is given to ensure a wide range of tones are used

Pictorialist: an approach to photography that emphasizes beauty of subject matter, tonality, and composition rather than the documentation of reality.Pictorialism was a photographic movement dating from the later nineteenth and early twentieth centuries that sought to elevate the photograph to the status of painting or drawing