Photography the word comes from the Greek words Photos means Light and Graphos meaning to write. The word photography was first coined the scientist called "Sir John Hercules Florence".
Types of Light Sources: (Natural and Artificial lights)
- · Day Light - Direct Sun light and sky light. Direct sun light produces warm and harsh shadows. Sky light produces cool light and shadows are diffused.
- · Tungsten: It heats up and emits light and produces warm tone (Lack of Blue).
- · Fluorescent - Phosphors inside fluorescent tube radiates light after absorbing ultraviolet light from mercury vapour emission.
Intensity of different light:
- · Candle Light – 1800K
- · 60W Household bulb – 2700K
- · 100W Household Bulb – 2900K
- · Fluorescent – 3000K
- · Incandescent (photo flood) – 3200K
- · Tungsten – 3200K
- · Quartz Halogen – 3200K
- · Strobe Light – 5500K
- · Camera Flash – 6500K