Varifocal lenses from US manufacturer Rainbow CCTV are being used in dome camera units at Boots stores throughout the UK.
The sites include the company’s flagship store in Oxford Street, London.
The 3-8mm direct drive Rainbow lenses are operating from Mark Mercer QuickSwitch fixed domes and are used internally. The client is recording digitally at its large stores and there is ongoing migration to digital recorders from analogue equipment. Monitoring is performed on site but the digital equipment has the potential for remote surveillance.
The next Boots store to take the units will be a large branch in the Canada Place shopping mall at Canary Wharf. The installations are being performed by Certainty Security who specialise in the supply, design, installation and maintenance of electronic security systems.
About the lenses
Rainbow’s 3-8mm varifocal lenses are available as a day/night model which corrects the focus shift that occurs when using IR lighting. These CS-mount lenses are compatible with 1/3 and 1/4 inch cameras. Maximum relative aperture is 1:1.4 and the minimum object distance is 0.3m. The angular field of view on a 1/361; camera is 92.9°~35.7° horizontal. Zoom and focus are adjusted manually and include locking screws. The lens is available in manual or auto-iris. Operation temperatures are 10 ~ +50°C. The units weigh about 45g (1.6oz.) The lenses feature all-glass optics. They are colour corrected and compatible with leading camera brands, the makers add. Rainbow lenses are covered by a four-year warranty.
