You can do photography with even the simplest of cameras, but the principles that I’d like to teach are for people who want to learn to use a DSLR camera, a micro four-thirds camera, or at least a camera that allows the photographer to adjust the shutter speed, aperture, and ISO.
EXPOSURE
Exposure is simply meant the brightness or darkness of a photo. It seems simple enough to take a photo that is correctly exposed (has the proper brightness or darkness), but in reality, it can be quite tricky. Exposure uses Aperture, Shutter speed, and ISO in conjunction to create a properly exposed image.
WHAT IS APERTURE?
Simply put, Aperture is the hole within your lens, through which light travels into the camera body.
The image above on the left is shot at an aperture of 1.4 making it a
wide aperture while the image on the right is taken at 5.6 making it a
more narrow aperture, therefore more of the shot is in focus.
WHAT IS ISO?
In very basic terms, ISO is the level of
sensitivity of your camera to available light. The lower the ISO number,
the less sensitive it is to the light, while a higher ISO number
increases the sensitivity of your camera.
LOW ISO
HIGH ISO
WHAT IS SHUTTER SPEED?
Shutter speed, also known as “exposure time”, stands for the length of time
a camera shutter is open to expose light into the camera sensor. If the
shutter speed is fast, it can help to freeze action completely, as seen
in the below photos. If the shutter speed is slow, it can create an
effect called “motion blur”, where moving objects appear blurred along
the direction of the motion which you can also see in the below photo.
High shuttler speed
Low shuttler speed
WHAT IS WHITE BALANCE?
As the name suggests, white balance
balances the color temperature in your image. How does it do this? It
adds the opposite color to the image in an attempt to bring the color
temperature back to neutral. Instead of whites appearing red or yellow,
they should appear white after correctly white balancing an image.
