Background
Camera's work by letting light into the lens with a pre-determined light intensity and a chosen length of time to be open for. The light intensity is the ISO, whereas the length of time that the shutter is open is the shutter speed.
ISO is something that the photographer has to decide based upon the setting of the picture. Lower ISO (such as 100, and 200) deals with brighter situations like being outside, while higher ones (such as 800, and 1600) deal with dimly lit situations like being indoors. Typically, 400 ISO is a good all around setting.
Shutter speed is something that the photographer has to decide based upon the rate that the subject is moving. Shutter speed is measured by how many seconds or fractions of a second the shutter of the camera is open for. The longer a shutter is open for, the more motion blur a picture will likely contain. Quick shutter speeds (such as 1/2000 or 1/1000 of a second) are great for capturing very rapid movement, like a hummingbird beating its wings . Long shutter speeds (such as 2 or 3 seconds) are great for capturing artistic motion blur, like someone doing a cartwheel. Medium shutter speeds (such as 1/30 or 1/65 of a second) are good for general use as they have the capacity to freeze-frame a movement yet also get a nice landscape portrait. One thing to keep in mind is to never hand hold a camera for lower than 1/30 of a second, as handshake will show up in the photographs as motion blur. Use a tripod instead.
ISO is something that the photographer has to decide based upon the setting of the picture. Lower ISO (such as 100, and 200) deals with brighter situations like being outside, while higher ones (such as 800, and 1600) deal with dimly lit situations like being indoors. Typically, 400 ISO is a good all around setting.
Shutter speed is something that the photographer has to decide based upon the rate that the subject is moving. Shutter speed is measured by how many seconds or fractions of a second the shutter of the camera is open for. The longer a shutter is open for, the more motion blur a picture will likely contain. Quick shutter speeds (such as 1/2000 or 1/1000 of a second) are great for capturing very rapid movement, like a hummingbird beating its wings . Long shutter speeds (such as 2 or 3 seconds) are great for capturing artistic motion blur, like someone doing a cartwheel. Medium shutter speeds (such as 1/30 or 1/65 of a second) are good for general use as they have the capacity to freeze-frame a movement yet also get a nice landscape portrait. One thing to keep in mind is to never hand hold a camera for lower than 1/30 of a second, as handshake will show up in the photographs as motion blur. Use a tripod instead.