An effect that causes the position or direction of an object to appear to change when viewed from different positions, e.g., through the viewfinder and the lens of a camera
par·al·lax
noun /ˈparəˌlaks/ parallaxes, plural
The effect whereby the position or direction of an object appears to differ when viewed from different positions, e.g., through the viewfinder and the lens of a camera.
The angular amount of this in a particular case, esp. that of a star viewed from different points in the earth's orbit.
Parallax scrolling is a special scrolling technique in computer graphics, wherein background images move by the camera slower than foreground images, creating an illusion of depth in a 2D video game and adding to the immersion.