ISS is an integrator of both physical and electronic security systems in critical infrastructure facilities world-wide.ISS also provides services for Security, Risk and Vulnerability Assessments, System Maintenance, and Research and Development of new technologies and protocols for security systems and components.SS is an integrator of both physical and electronic security systems in critical infrastructure facilities world-wide.
Wiktionary (0.00 / 0 votes) Rate this definition: shutter speed (Noun). The duration of time for which the shutter of a camera remains open when exposing photographic film or other photosensitive material to light for the purpose of recording an image.
If you want to photograph something that is moving, you need a fast shutter speed. 1  Use 1/500 for general photography of everyday events, sports, and subjects. 2  Use 1/1000-1/4000 when shooting subjects that are extremely fast and up close. 1/1000-1/2000 works well when photographing birds. Typically only the denominator is marked on the camera. 2  For example, 125 means 1/125 second. 3  Some cameras allow you to take photos at a shutter speed in full seconds, such as 1, 2, or 10 seconds. 4  This is used for low light photography and a lot of movement.