I am a photographer and i like photography.For ISO photography following rules are very important.
For the sake of a universally identifiable acronym, the organisation adopted the short name ISO, based on the Greek word isos which means equal. The ISO number refers to the film's sensitivity to light. Higher the number, the more sensitive to light the film is.
In Digital Photography ISO measures the sensitivity of the image sensor. The same principles apply as in film photography – the lower the number the less sensitive your camera is to light and the finer the grain. Higher ISO settings are generally used in darker situations to get faster shutter speeds.
ISO, which stands for International Standards Organization, is the light sensitivity rating of a digital image sensor. ... As you increase the ISO, the sensor becomes more sensitive to light, which allows it to capture more light without slowing down the shutter speed or opening up your aperture.
