May 17, 2013

Knowing light. Types of light. An introduction

Almost all of the literature about light starts explaining what light is.
Honestly, as a photographer, I don't really care if light is made of an emission of particles or an emission of waves. What I do care of is the quality of light and its intensity. By the quality of light we can achieve better looking images, a suitable colour rendering index (CRI) and colour appearance (colour temperature) for the mood; playing with its intensity we can achieve the correct exposure (I mean for correct the exposure we want).

Light can be either natural (the sun) or man-made (light generator) provided directly from its source or indirectly (bounced).

Natural light, the golden hour
Artificial light can be divided into incandescent lamps (mercury vapour lamps, Tungsten, PAR 64), discharge lamps (fluorescent lamps, metal halide lamps HMI) and LEDs. Natural light can also be divided into categories, not only in harsh and soft light but also in north light, morning light and afternoon light, golden hour and blue hour...

Each and every one of these types of light produces different results in the emulsion or in the digital pixels. During the next posts we will analyze all these types of light one by one to see those differences and how to use them for our benefit.
So stay tuned!

No comments:

Post a Comment