An opening, hole, or gap. A space where light passes. When the aperture was low, the picture brighter. When the aperture was high, the picture got darker.
Low
High
Good
Shutter Speed
How long a camera's shutter is open while taking a picture.
Low
High
Good
ISO Speed
The measure of a photographic film's sensitivity to light. When I turned up the ISO speed on a high of 3000, my picture was brigher. When I turned the ISO speed to a low of 60 the picture got darker.
High
Low
Good
White Balance
Adjusts lighting. The color balance on a video camera.
Bad
Good
Optical Zoom
A lens that can change its focal length. A setting that lets you zoom in/out.
With Zoom
Without Zoom
Auto and Manual Focus
Auto focus - a sensor to focus fully automatically. Manual focus - adjust the focus of the lens by hand.
Auto Focus
Manual Focus
Wide Angle vs Telephoto vs Portrait Lenses
Wide Angle
Telephoto
Portrait Lenses
Wide Angle: having a wider than normal angle of view. Telephoto: a camera lens that magnifies the image. Portrait Lens: a camera lens with a relatively high aperture.
Flash
A sudden burst of bright light from a reflective surface.
On
Off
Priority Settings
Av: A setting on cameras that allow the user to choose a specific aperture value while the camera selects a shutter speed to match. Tv: setting on cameras that allow the user to choose a specific shutter speed, while the camera adjusts the aperture to get the right exposure.
Av
Tv
Preset Functions
They are pre-programmed settings that chooses the optimum shutter speed, and aperture value for the type of picture you want to take. Different setting that allow you to take different types of pictures.