WHAT IS APERTURE?
Aperture is “the adjustable lens opening that controls the amount of light allowed into the camera” as well as controlling the exposure and depth of field. When there is a large hole, more light is being let in to hot the sensor and making your pictures lighter. Therefore, a smaller hole makes your pictures darker. This scale is written using f/stops (e.g. 1.4, 2, 2.8, etc.).
The f/stop can be seen below next to the shutter speed:
HOW APERTURE EFFECTS DEPTH OF FIELD
Depth of field is how much of the image is in focus, or the distance in an image where objects appear “acceptably in focus” or have a level of “acceptable sharpness.” Some images have a ‘shallow’ or ‘thin’ depth of field, where the background is completely out of focus. Or they will have a ‘high’ or ‘large’ depth of field, where both the background and the foreground are in focus.
APERTURE EFFECTS
What is effected by aperture:
- brightness
- exposure
- sharpness
- quality of highlights
- focus
An over exposed picture –
A picture after the exposure has been fixed –
