Aperture determines the amount of light that reaches the camera sensor, with smaller apertures resulting in larger depth of field but slower shutter speeds. Shutter speed determines how long the camera's shutter is open, with longer shutter speeds allowing more movement to be captured but shorter shutter speeds providing more clarity. ISO measures the light sensitivity of the image sensor, with higher ISO numbers producing grainier images but being more sensitive to light.

1. Manual Camera Settings

2. Aperture
http://www.softnuke.com/camera-keywords-explained/
Aperture determines how much light is able too reach the sensor in the camera. When the
aperture is set to a smaller stop the depth of field is larger than that of a bigger stop. The
smaller stops have the largest f numbers and allow less light in and have a slower shutter
speed whereas the lower f numbers allow lots of light in and have a fast shutter speed.

3. Shutter Speed
http://dommartlewphotography.weebly.com/art-1-unit-1.html
The shutter speed determines how
long the cameras shutter is open
when taking a photograph. The
longer the shutter is open the more
movement can be seen in the shot.
When the shutter is open for a short
time the picture will have more
clarity and definition.

4. ISO
ISO is influenced by the films light
sensitivity. The higher ISO
numbers will be less grainy that
the lower ISO numbers. It is
measured in these numbers
100,200,400 and 800 and so on.
In photography ISO measures the
sensitivity of the image sensor.
The lower the number the less
sensitive your camera is to light
which gives a finer grain.
http://www.exposureguide.com/iso-sensitivity.htm

5. My Own Photographs