Anything is possible. Some days can be as short as five hours, but 14-hour days are not unusual. I could work during the day, at night or during weekends and bank holidays.
This is usually performed by a simple plug-in connection to the rear or side of the camera. However you should always refer to the relevant camera handbook.
A Digital CCTV Video Recorders, (DVR), are stand-alone units that are capable of saving digital CCTV images to a PC. DVR look similar to a standard Video Cassette Recorders (VCR's).
Only lighting within the visible wavelength should be used with color cameras. Tungsten Halogen is often the recommended source of lighting.
This can be achieved in a number of ways, the easiest of which is the installation of a Ground Loop Isolation Transformer. This is best installed at the monitor or recording end of the system.
An Auto Iris lens is one that automatically adjusts its iris for changes in the scene lighting levels. The motor that opens and closes the iris is driven by an Amplifier that processes a small electronic signal changing with the light level.
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Yes, lenses are usually specified as having a minimum and maximum 'f' stop rating; the 'f' stop is a measure of how efficiently the lens allows light from the scene, to pass through the lens and onto the camera CCD sensor. The maximum aperture (when the lens is fully open), is the minimum 'f' stop number and the minimum aperture, (just before the lens completely closes) is the maximum 'f' stop number.
Currently the majority of CCTV systems use Digital technology. Digital CCTV Surveillance uses current PC technology to digitize the CCTV camera images and compress them into a PC friendly format. These digital images can then be stored on a PC's Hard Disk Drive. As the digital cctv images are stored on computers Hard Drives it is possible to save digital cctv footages and access them speedily and easily. Digital CCTV also has the advantage over Analogue CCTV systems that the image is of a far higher resolution.
On location, I am usually part of a team of four or five people, including a sound operator, a producer, possibly an assistant producer and a presenter. In the studio I work as part of a team or three or more camera operators, as well as director, a producer, one or more presenters and lots of other technical operatives such as lighting, sound and videotape technicians.