Source and colour are two aspects of lighting that should always be remembered when filming. Whilst speaking of the source of lighting, three point lighting is often used. Three point lighting is when,"by using three separate positions, the director can illuminate the shot's subject (such as a person) however desired, while also controlling (or eliminating entirely) the shading and shadows produced by direct lighting." The three lights are; the key light - which focuses on the subject matter in the shot, the fill light - which focuses on illuminating the entire scene which helps get rid of unwanted shadow and the back light - which focuses on illuminating the background and getting rid of the shadow.
Here are the links to three point lighting where I collected my information; http://en.wikipedia.org/wiki/Three-point_lighting
http://www.mediacollege.com/lighting/three-point/
White balance and Colour gels
In video recording, white balance is an electronic process that calibrates the picture for accurate colour display in different lighting conditions by determining what is "white." White balancing should be performed prior to any recording. The easiest way to calibrate is to focus in on a piece of white paper where you will be filming.
Colour correction by using colour gels is a process used in cinematography with the intention to alter the overall colour of the light; typically the light colour is measured on a colour temperature.Without colour correction gels, a scene may have a mix of various colours. Applying colour correction gels in front of a light sources can alter the colour of the various light sources to match. Mixed lighting can produce an undesirable aesthetic when displayed on a television or cinema screen.Gels may also be used to make a scene appear more natural by simulating the mix of colour temperatures that occur naturally. Colour gels may also be used to tint lights for artistic effect.There are two main types of colour gels; CTO (colour temperature orange) and CTB(colour temperature blue). A CTB gel converts tungsten light to 'daylight' colour and a CTO gel performs the reverse.
Here are the link to the information about white balance and colour gels;
Here are the links to three point lighting where I collected my information; http://en.wikipedia.org/wiki/Three-point_lighting
http://www.mediacollege.com/lighting/three-point/
My group and I experimented using the three point lighting, below are two videos showing our experiments.
The images below show what happened when we tried to recreate the three point lighting technique. They all show various parts of the screen being illuminated at each time, with the key light illuminating the main person with a lot of shadow, the fill light subtly illuminating the screen in comparison to the back light which focused purely on the background ignoring the subject matter.
The images below show what happened when we tried to recreate the three point lighting technique. They all show various parts of the screen being illuminated at each time, with the key light illuminating the main person with a lot of shadow, the fill light subtly illuminating the screen in comparison to the back light which focused purely on the background ignoring the subject matter.
Colour correction by using colour gels is a process used in cinematography with the intention to alter the overall colour of the light; typically the light colour is measured on a colour temperature.Without colour correction gels, a scene may have a mix of various colours. Applying colour correction gels in front of a light sources can alter the colour of the various light sources to match. Mixed lighting can produce an undesirable aesthetic when displayed on a television or cinema screen.Gels may also be used to make a scene appear more natural by simulating the mix of colour temperatures that occur naturally. Colour gels may also be used to tint lights for artistic effect.There are two main types of colour gels; CTO (colour temperature orange) and CTB(colour temperature blue). A CTB gel converts tungsten light to 'daylight' colour and a CTO gel performs the reverse.
| Orange colour gel |
By using colour gels they have the ability to change the lighting of a scene and therefore the temperature also, for example an orange colour gel is used to make a room seem cooler and a blue colour gel to make the room appear warmer.
| Blue colour gel |
My group and I wanted to experiment using these different colour gels as we wanted to see first hand the changes the colour gels made to the film. Our experiment took place in a corridor which was already full of natural light, we turned the camera to white balance then held up a piece of white paper with either an orange or blue colour gel above it so the camera was able to pick up the colour. Here are the video links to the experiments; White balance to half orange and White balance to half blue. You are clearly able to see how half blue can make the room feel warm where as the half orange can make the room feel rather cold, these colour gels could come in handy when shooting our short film.
Above is a video showing the effects of both red and green colour gels placed over lights to create a different atmosphere.
Although we used the colour gels specifically to alter the white balance of the video, we discovered you can also use the same gels placed in front of a light to balance the colour temperature of the lights (As seen in the green and red video above). This is useful knowledge as my group and I may need to change the colour temperature of the lights in the room however not the white balance. We tried to do that in the experiment below placing orange gels over lights.
Although we used the colour gels specifically to alter the white balance of the video, we discovered you can also use the same gels placed in front of a light to balance the colour temperature of the lights (As seen in the green and red video above). This is useful knowledge as my group and I may need to change the colour temperature of the lights in the room however not the white balance. We tried to do that in the experiment below placing orange gels over lights.















