lens holder
11Compass — This article is about the direction finding instrument used in navigation. For other uses, see Compass (disambiguation). A simple dry magnetic pocket compass …
12Smart camera — A smart camera is an integrated machine vision system which, in addition to image capture circuitry, includes a processor, which can extract information from images without need for an external processing unit, and interface devices used to make… …
13View camera — The view camera is a type of camera first developed in the era of the DaguerreotypeStroebel, L. D. (1986). View Camera Technique , 5th ed., p. 212. Boston: Focal Press. ISBN 0 240 51711 3] and still in use today, though with many refinements. It… …
14Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… …
15Photographic filter — Four photographic filters. Clockwise, from top left, an infrared hot mirror filter, a polarising filter, and a UV filter. The larger filter is a polariser for Cokin style filter mounts. In photography and videography, a filter is a camera… …
16List of instruments used in ophthalmology — Instruments used specially in Ophthalmology are as follows: [1] Contents 1 Instrument list 2 Image gallery 3 References Instrument list …
17microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …
18Enlarger — An enlarger is a specialised transparency projector used to produce photographic prints from film or glass negatives using the gelatin silver process, or transparencies. All enlargers consist of a light source normally an incandescent light bulb …
19photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
20Camera — For other uses, see Camera (disambiguation). Various cameras A camera is a device that records and stores images. These images may be still photographs or moving images such as videos or movies. The term camera comes from the camera obscura… …
