Breaking the MMA Lens – 3 need-to-know things about cameras (part 3)
This is Part Three in the series “3 Things to Know.' So far we’ve gone over shutter speed, or the time the shutter is open. Then we talked about aperture, how much the shutter opens. The third thing we’re talking about is ISO or how sensitive the camera sensor is to light. ISO stands for International Organization for Standardization, but who really cares. Old film cameras used to call this ASA (American Standards Association). The higher the ISO number the more sensitive the camera sensor is to light. So, you don’t have to keep the shutter open as long or as wide. ISO’s in most modern DSLR’s go from about 100 to 6400. 100 is the least sensitive to light