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2. Pan–tilt–zoom camera - Wikipedia

   en.wikipedia.org/wiki/Pan–tilt–zoom_camera

   PoE PTZ Camera: A PoE (power over Ethernet) PTZ camera may be powered and connected to the internet with a single Ethernet cable, eliminating the need for additional wiring. Analog PTZ Camera: Analog pan-tilt-zoom cameras are used to record surveillance footage, which is then stored in a DVR. DVR functionality is essential for converting ...

3. List of superzoom compact cameras - Wikipedia

   en.wikipedia.org/wiki/List_of_superzoom_compact...

   This is a list of superzoom compact cameras, also known as travel zoom cameras. [ 1 ] [ 2 ] These are small fixed-lens " point-and-shoot " digital cameras that have a high optical zoom ratio. These cameras all include a power zoom lens that retracts into the body when not in use, along with an automatic lens cover or lens cap.

4. Video management system - Wikipedia

   en.wikipedia.org/wiki/Video_management_system

   A digital translation of a fixed camera view, to zoom in on the image and pan that close-up view around the zoomed image. Both the analog and digital PTZ can be combined together, potentially with a combined control system that is at first analog, but switches to digital once the optical zoom-in limit has been reached.

5. Zoom lens - Wikipedia

   en.wikipedia.org/wiki/Zoom_lens

   A zoom lens is a system of camera lens elements for which the focal length (and thus angle of view) can be varied, as opposed to a fixed-focal-length (FFL) lens . A true zoom lens or optical zoom lens is a type of parfocal lens, one that maintains focus when its focal length changes. [1]

6. Closed-circuit television - Wikipedia

   en.wikipedia.org/wiki/Closed-circuit_television

   Main types of IP cameras include fixed cameras, pan–tilt–zoom (PTZ) cameras, and multi-sensor cameras. [160] Fixed cameras' resolution typically does not exceed 20 megapixels. The main feature of a PTZ is its remote directional and optical zoom capability. With multi-sensor cameras, wider areas can be monitored.

7. List of digital camera brands - Wikipedia

   en.wikipedia.org/wiki/List_of_digital_camera_brands

   Instant cameras and printers manufactured by Polaroid B.V. Praktica: Germany: Compact digital cameras PTZOptics: USA: PTZ cameras, zoom cameras, camera controllers, HIVE Cloud Controller, and accessories Ricoh: Japan: Caplio and other compact digital cameras and the modular GXR MILC: Rollei: Germany: Compact digital cameras Samsung: South Korea