YouTube Tutorials:

ISO Settings 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.

An Introduction to Aperture and F-Stop
In this video, we discusses ISO. ISO is a measurement of a digital sensor’s (or films) sensitivity to light. This video discusses when to use different ISO settings as well as explaining native, standard, and boosted ISO for your digital camera.

3 Mistakes All Beginner Photographers Make
In this video, we'll talk about three mistakes almost all beginner photographers make and what you can do to fix it.