This is the first article of the Back to Basics series which tells allabout the basics of photography, and it deals with Exposure. Do you know that click sound that cameras make? It originates from a "flip" of a mirror that allow light to fall on the camera's sensor (or for the old skool photographer - to fall on the film).
The effect of light falling on a sensor is called Exposure. That is because the sensor is exposed to light. (OK, great, so exposure happens when something is exposed. Big deal! no wait there's more...) When the sensor is exposed, it gathers the light and depending on how much light is gathered it creates an image.
Exposure is relative and is comparable by something called stops. (or F stops). The main trick for understanding exposure is that "opening" or "closing" a stop, doubles or halfs the amount of light that falls on the sensor. Lets have a closer look. Click to continue ›