ISO:
ISO in Digital Photography. 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.In traditional (film) photography ISO (or ASA) was the indication of how sensitive a film was to light. It was measured in numbers (you’ve probably seen them on films – 100, 200, 400, 800 etc). The lower the number the lower the sensitivity of the film and the finer the grain in the shots you’re taking.the lower the number the less sensitive your camera is to light and the finer the grain.Higher numbers mean your sensor becomes more sensitive to light which allows you to use your camera in darker situations. The cost of doing so is more grain (although cameras are improving all the time and today many are able to use high ISO settings and still get very useable images).
Examples of ISO:
Best image
Worst image |
I think this is my best image because the flower is in focus and the background is out of focus which makes the image have a good aperture and also it is a good clear image with no camera shake.This image is using small aperture because the background is out of focus. I think my image also has the correct white balance because it is the correct colour. |