In photography, shutter speed or exposure time is the length of time a camera's shutter is open when taking a photograph.

Shutterspeed
Shutter Speed
Shutter speed
Get the Most From Your Digital SLR
Addenda to the Nikon Guide to Digital Photography with the COOLPIX5000
High speed jet blocker with readily replaceable blocking material
HIGH SPEED JET BLOCKER WITH READILY REPLACEABLE BLOCKING MATERIAL
CCD CAMERAS - Hitachi Kokusai Electric UK Ltd., Industrial Video Systems
Variables that affect exposure
Apparatus, architecture and method for high-speed printing
Variation of the relaxographic "shutter-speed"for transcytolemmal water exchange affects the CR bolus-tracking curve shape
Effects of equilibrium exchange on diffusion‐weighted NMR signals: The diffusigraphic “shutter‐speed”
The Magnetic Resonance Shutter Speed Discriminates Vascular Properties of Malignant and Benign Breast Tumors in vivo