Close-up and Macro Photography

FIVE Understanding ISO

 

 

 

DESCRIBED AS ONE of the three photographic tographic triangles or pillars, ISO is the acronym for International Standards Organisation; a non-government body responsible for setting industrial and commercial standards in a wide variety of subjects. ISO along with shutter speed and aperture determine the exposure of a photograph. Your camera’s image sensor is responsible for collecting the light passing through the lens and converting it into a visible picture. Put simply, ISO is the measurement of the sensitivity of your camera’s sensor to available light. The abbreviation itself originates from the days of analogue capture when the ISO number on the film cassette referred to its speed. The ISO setting on your ...