TUNGSTEN LIGHTING

Exercise

• Take 3 images which shows the different tones of Tungsten
• lighting at daylight, auto and tungsten settings
• show both internal and exterior tungsten lights

The colour of light.

Light is measured in the Kelvin scale.

On the Kelvin scale light is categorised by its hue
tones. Mid day sun which is often the brightest source of
daylight is often registered as white of neutral light.
On the kelvin scale this is registered at 5000k. Morning light
is often blue and overcast and is registered 6000-7000k.
Sunset is red and registered as kelvin level of 2000k or less.

Artificial light reflects the tones of the natural light but the camera
registers them differently. You can get daylight bulbs which the
cameras as natural white light.  Tungsten bulbs as " hot" so
give off a kelvin temperature of around 2000k or less. This
means that the camera see them as red or orange. So images
taken in this lighting condition will have a red hue unless colour
corrected by the camera with white balance set to tungsten.

In film camera you would you an 80a filter which adds blue to
the image so makes the light neutral to the camera.

This sequence of images shows the same scene taken with
different white balance settings.

Auto setting has tone down the red tone and made it green/blue

White balance set a cloudy will add to the red tone as it

adds red to the very blue tones of overcast sky's.

White balance set to tungsten has made the image more of
a blue/green tone.

The above image has been colour balanced in photoshop

to daylight which has made the tone of the photo

more white/blue

The next two images shows the effects of external

tungsten lights The image were taken with an street

light shining in from the side.

A factor need to taken into consideration when taking

interior shots.

Night shots are affected by tungsten steert lighting.

The next two images were taken at 4 sec speed

and show the tones of sun set and the red tones

of the tungsten lights on the bridge

The above image was taken with white balance set to

tungsten and has tone down all the red tones to blue.

Tunston lighting can be used artistically

The below series of images shows some candid night shots

taken in a Rome square which was light by tungsten

lampposts red/orange tone adds the the atmosphere

of the image.

Comments

Be aware of the effects of tungsten lighting has on the final image.

To mute the red tone look at white balance especially daylight or

tungsten setting.