- size lens
- iseikonic l.
Medical dictionary. 2011.
size lens
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Lens speed — refers to the maximum aperture diameter, or minimum f number, of a photographic lens. A lens with a larger maximum aperture (that is, a smaller minimum f number) is a fast lens because it delivers more light intensity (illuminance) to the focal… … Wikipedia
Lens (optics) — For other uses, see Lens. A lens. Lenses can be used to focus light. A lens is an optical device with perfect or approximate axial symmetry which tra … Wikipedia
Lens (anatomy) — Crystalline lens (anatomy) Light from a single point of a distant object and light from a single point of a near object being brought to a focus by changing the curvature of the lens … Wikipedia
Lens mount — A lens mount is an interface mechanical and often also electrical between a photographic camera body and a lens. It is confined to cameras where the body allows interchangeable lenses, most usually the single lens reflex type or any movie camera… … Wikipedia
Lens — The transparent structure inside the eye that focuses light rays onto the retina (the nerve layer that lines the back of the eye, senses light and creates impulses that go through the optic nerve to the brain). The lens was named after the lentil … Medical dictionary
lens blank — noun A rough, opaque piece of glass of suitable size, design and composition for use, when ground and polished, as a multifocal lens for use in a pair of eyeglasses … Wiktionary
LENS — a piece of glass adapted as convex or concave so as to change the direction of the rays of light passing through it and magnify or diminish the apparent size of an object … The Nuttall Encyclopaedia
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
Mirrorless interchangeable-lens camera — MILCs feature a large sensor in a small body (Olympus PEN E P2) A mirrorless interchangeable lens camera (MILC) is an emerging class of digital system cameras, intermediate between compact digital cameras and digital single lens reflex cameras… … Wikipedia
