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.
Numerically, 30 seconds is a larger number than, say, 1/125 of a second, but it's not a faster shutter speed. So, while shutter speed is not an inverse square relationship (like light intensity), it's still an inverse (first power) relationship: The smaller the fraction, the faster (higher) the speed.