WebOct 17, 2024 · A lens's minimum focus distance is usually specified, and is always with respect to the sensor/film plane mark. The distances markings or scales on lenses are this type of focus distance, measured from the focal plane marker. Working distance is the distance between the front of the lens and the subject. Working distance is sometimes … WebT angxi CW-M14VG2812 3MP Auto Iris Lens 2.8-12mm Focal-Length 1/2.7 inches Motorized Zoom Lens 7.1-13.6mm Flange BFL Auto-Iris CCTV CS Mount Lens with High Precision Motor. US $34.58. SKU:NO6073547. 1 / 2.7-inches 3MP resolution lens, high-quality optical glass and metal workmanship.
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WebCCTV Lenses are available in two different lens mounts. "C-Mount" lenses have a flange back distance of 17.526mm vs. 12.5mm for "CS-Mount" lenses. Many of ... Because of the shorter back focal distance, CS-Mount lenses can only be used on CS-Mount cameras. Your picture will be out of focus if you use a CS-Mount lens on a C-Mount camera. … WebMay 7, 2024 · The bare camera itself is CS-mount, with extension tube for C-mount lenses. CS-mount has a flange focal distance of 12.526 millimetres, C-mount has 5 more at 17.526 mm. Now if you look at the drawing you see that the basic CS-mount should 11.4 mm away from the board when screwed in completely. gift for wife on her birthday india
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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 or register, depending on the usage and source) of a lens mount system is the distance from the mounting flange (the interlocking metal rings on the camera and the rear of the lens) to the film or ima… WebSep 20, 2024 · The "closer to the sensor" advantage of which your friend speaks has a lot more to do with the distance between the sensor and the flange upon which the lens is attached, referred to as the registration distance (or colloquially as the flange-focal-distance) for a particular lens mount system, than it has to do with the different … Web3′. (0.9m) 8′ (2.4m) 6′. (1.8m) *Most 1/4″ CCD cameras produce a significantly narrower field of view with the same focal length lens. This chart displays angles based on 1/3″ image sensors. **Due to the physical nature of lens optics, these numbers listed should be considered accurate within ±3° and therefore a few feet/meters as well. frz forwarding