Motion, Video & Creative Techniques
11 terms
Shadow Play
Motion, Video & Creative Techniques
Using cast shadows as the primary graphic element of a photograph.
Shaped Bokeh
Motion, Video & Creative Techniques
mm (aperture cut-out)
Rendering out-of-focus highlights as a chosen shape by placing a cut-out mask over the lens.
Shutter Angle
Motion, Video & Creative Techniques
degrees
A way of expressing shutter speed relative to frame rate, inherited from the rotating disc shutters of film cameras.
Shutter speed = 1 / (fps × 360/angle)
Silhouette
Motion, Video & Creative Techniques
stops
An image in which the subject is rendered as a dark shape against a much brighter background.
Slow Motion
Motion, Video & Creative Techniques
×
Footage recorded at a higher frame rate than its playback rate, so action appears to unfold more slowly.
Slowdown = capture fps / playback fps
Slow Sync Flash
Motion, Video & Creative Techniques
seconds
Combining flash with a shutter speed long enough for ambient light to register, so a sharp subject sits within a blurred environment.
Star Tracker
Motion, Video & Creative Techniques
arcsec/s
A motorised mount that rotates the camera to match the Earth's rotation, allowing long exposures without star trailing.
Sidereal rate = 15.04″/s
Star Trails
Motion, Video & Creative Techniques
minutes
Arcs traced by stars across the frame as the Earth rotates during a very long exposure or a stacked sequence.
15° per hour of rotation
Steadicam
Motion, Video & Creative Techniques
kg
A mechanical stabilising system that isolates the camera from the operator's movement using a counterweighted arm and vest.
Stop Motion
Motion, Video & Creative Techniques
fps
Animation created by photographing an object frame by frame, moving it slightly between exposures.
Stroboscopic Flash
Motion, Video & Creative Techniques
Hz
Firing a flash repeatedly during a single long exposure, recording a sequence of positions in one frame.
Positions = frequency × duration