TAOP: Part 4 ? Light: Available Light ? Project Introduction
April 3, 2012
So, on to the next project in part four “light”. Here are some notes from the introduction pages:
- Except among professions, artificial light is used much less by photographers than daylight. This is because daylight is easier to use – requiring no preparation, whereas artificial light needs more technical expertise.
- Two distinct types; available light – e.g. artificial light used to illuminate buildings, streets and interiors; photography lighting – equipment bought to create deliberate lighting effects.
- Much light is weaker than daylight, even when used close up, so a tripod would be required for long exposure or high ISO settings for hand-held shooting.
- Found indoors and outdoors at night – there are three kinds: tungsten, fluorescent and vapour lamps.
- Tungsten are ordinary domestic bulbs and look orang or yellow to the eye and photograph reddish.
- Fluorescent lighting is generally found in public places, like supermarkets, work places, offices and factories. It appears greenish when photographed, despite appearing white tot he ye. The colour cast can instead be yellowish in some cases and some cameras may have more than one fluorescent light white-balance setting (though mine doesn’t).
- Vapour discharge lights are used for flood lights and street lighting. Sodium look yellow and photograph yellow or yellow-green; they can not be corrected as they have no blue at all. The other type are mercury vapour and multi-vapour which look similar to each other – intense and a slightly blueish white. When photography, mercury appears blue-green while multi-vapour appear white.