Lighting in film

Lighting helps convey the mood or atmosphere of the scene we are observing or within the film. The audience’s attention can be guided by brightly lighting an object or gesture important to the scene/ storyline whilst keeping other minor aspects in relative darkness. At the same time a director can also use shadows to build up suspense by concealing elements in the scene or making the shadows move faster or slower from the audience.

Source of light

In a studio lighting is usually constructed  with 3 main sources as shown by the image above.These are :

1)Key light: this is the main light  it is usually the brightest light and has the most effect when it is in use. for example below  the key light highlights all the main features of the character this is considered the main light because the effect causes us to have an opinion on the object or character.

2)Back light: this light is used to counteract the Key light by doing this is makes the character or object more "rounded".for example below the key light is the sun and it shines through leaving a 3 dimensional look to the object.   

3)Filler light:this light helps soften any strong shadows that may appear because of the Key and Back lights, to achieve this there may be more that one filler light.for example below the shadows in the pictures are a lot softer because they used the filler light in company of the key light. 

Angles and Effects
Lighting may also be used for the effects it may make this is caused by different techniques in lighting angles these are mostly achieved with the key light.These are :

Key lighting :
1) Under lighting:this effect is caused when the key light is placed below the object or character the effect caused is a distortion of what is lit this is used in most horror films for example the picture below shows the spooky effect it makes  and the diagram on the right shows us how the effect is achieved even though it is very simple.

2)Top lighting:this is when the main source of lighting comes from above this may highlight protruding features of the characters face or the object for example in the picture below the person's nose is a main feature on his face there for this blocks light from other features of his face.

3)Back lighting:this is when the light source is behind the object or character this creates the effect of a silhouette the impression the viewer may get of this is mystery or brilliance this mostly depends on the interpretation of the viewer for example in my view the picture below gives an air of brilliance that refers to the sun. 

If anyone has any comments or ideas about the pictures feel free to write them below
Thank you