Search results
Results from the WOW.Com Content Network
Smartphone lenses are often marketed in terms of "optical zoom" [ 1] relative to the phone's main camera. For example, 120mm is usually referred to as "5× optical zoom", because the main camera's focal length is commonly around 24mm. However, only a few smartphones, such as the Sony Xperia 1 IV and V, include a true zoom lens that offers ...
Lens controller. A lens controller is device that controls motorized photographic lens functions such as zoom, focus, and iris opening ( aperture ). [1] Lens controllers can be found in still camera photographic lenses and as stand-alone units in machine vision, remote sensing, optoelectronics systems, and security applications.
Diagram illustrating the flange focal length of an SLR–type and a mirrorless–type camera. For an interchangeable lens camera, the flange focal distance (FFD) (also known as the flange-to-film distance, flange focal depth, flange back distance (FBD), flange focal length (FFL), back focus [1] or register, depending on the usage and source) of a lens mount system is the distance from the ...
Buy: Google Nest Cam (Battery) $179.99 . Buy: Google Nest Cam (battery) $178.99 . The Google Nest Cam (Battery) earns our top spot as the best security camera for many reasons.
Vandal dome-style camera. A closed-circuit television camera is a type of surveillance camera that transmits video signals to a specific set of monitors or video recording devices, rather than broadcasting the video over public airwaves. The term "closed-circuit television" indicates that the video feed is only accessible to a limited number of ...
S-mount (CCTV lens) The S-mount is a standard lens mount used in various surveillance CCTV cameras and webcams. It uses a male metric M12 thread with 0.5 mm pitch on the lens and a corresponding female thread on the lens mount. S-mount lenses are often called "M12 lenses". Because the lens mounts are usually attached directly to the PCB of the ...
In everyday digital cameras, the crop factor can range from around 1 (professional digital SLRs), to 1.6 (consumer SLR), to 2 (Micro Four Thirds ILC) to 6 (most compact cameras). So a standard 50 mm lens for 35 mm photography acts like a 50 mm standard "film" lens on a professional digital SLR, but would act closer to an 80 mm lens (1.6×50mm ...
For example, a 28 mm lens on the DSLR (given a crop factor of 1.5) would produce the angle of view of a 42 mm lens on a full-frame camera. So, to determine the focal length of a lens for a digital camera that will give the equivalent angle of view as one on a full-frame camera, the full-frame lens focal length must be divided by the crop factor.