auxiliary lens

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• Digital single-lens reflex camera — Nikon D700 full frame (FX) digital SLR camera …   Wikipedia

• History of the single-lens reflex camera — The history of the single lens reflex camera predates the invention of photography in 1826/27 by one and a half centuries with the use of a reflex mirror in a camera obscura first described in 1676. Such SLR devices were popular as drawing aids… …   Wikipedia

• Single-lens reflex camera — The single lens reflex (SLR) camera uses an automatic moving mirror system which permits the photographer to see exactly what will be captured by the film or digital imaging system, as opposed to non SLR cameras where the view through the… …   Wikipedia

• Prime lens — In film and photography, a prime lens is either a photographic lens whose focal length is fixed, as opposed to a zoom lens, or it is the primary lens in a combination lens system.Confusion can sometimes result due to the two meanings of the term… …   Wikipedia

• contact lens corneal — a contact lens that rests on the cornea, not on the sclera, and requires no auxiliary liquid; called also corneal l …   Medical dictionary

• contact lens scleral — a contact lens that covers the cornea and rests on the sclera, with or without an auxiliary liquid between it and the cornea …   Medical dictionary

• bertrand lens — noun Usage: usually capitalized B Etymology: probably after Joseph L. F. Bertrand : an auxiliary removable lens in the tube of a polarizing microscope used to obtain interference figures …   Useful english dictionary

• Headlamp — Headlight redirects here. For other uses, see Headlight (disambiguation). High Beams redirects here. For the urban legend also known by that name, see Killer in the backseat. A motor scooter s front with an impractical number and variety of… …   Wikipedia

• Macro photography — is close up photography; the classical definition is that the image projected on the film plane (i.e., film or a digital sensor) is close to the same size as the subject. On 35 mm film (for example), the lens is typically optimized to focus… …   Wikipedia

• telescope — /tel euh skohp /, n., adj., v., telescoped, telescoping. n. 1. an optical instrument for making distant objects appear larger and therefore nearer. One of the two principal forms (refracting telescope) consists essentially of an objective lens… …   Universalium

• Automotive lighting — Blinker redirects here. For other uses, see Blinker (disambiguation). Not to be confused with Magneti Marelli company AL Automotive Lighting. For lights in seafaring and aviation, see navigation light. The lighting system of a motor vehicle… …   Wikipedia