Posts Tagged ‘ISO speed’

I've seen a few comments from some photographers stating that with the good high ISO performance from current cameras, there's no need to spend money on fast glass anymore. (If you're wondering what fast glass means, it means lenses with a large maximum aperture like f/1.4 or f/2.8, you can read more here: What does Lens Speed mean?)

In this article I want to take a look at this argument, and see if there is any truth in the statement.

Along with aperture and shutter speed, ISO is one of the settings on your camera that you can use to affect the brightness (exposure) of your photos. Unlike aperture it won't affect depth of field, and unlike shutter speed, it doesn't affect how quickly (or slowly) an image is captured. However, it can affect image quality by introducing what is known as 'noise'.