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.
speed. 1  Also called film speed. the sensitivity of a film or paper to light, measured by an ASA or DIN index, which assigns low numbers to slow film and higher numbers to faster film. 2  Also called shutter speed. the length of time a shutter is opened to expose film. 3  the largest opening at which a lens can be used.