To bring to a focus; to focalize; as, to focus a camera.
Adjusting the distance between the lens and an image to help improve the quality and sharpness of a digital image. Sign up now Get 15 free prints See member benefits
The process of adjusting the lighting during a fit-up week
The point underground where two sides of a fault slip past each other and cause an earthquake. The deeper the focus is, the weaker the magnitude of the earthquake of the earthquake on the surface. epicentre
to adjust the eye or a lens in order to make a clear image
The place in the Earth where rock first breaks or slips at the time of an earthquake; also called the hypocenter. The focus is a single point on the surface of a ruptured fault. During a great earthquake, which might rupture a fault for hundreds of kilometers, one could be standing on the rupturing fault, yet be hundreds of kilometers from the focus.
The point at which light rays from the lens converge to form a sharp image. Also, the sharpest point in an image achieved by adjusting the distance between the lens and image.
The narrowing of a subject to a manageable size; also the sharpening of the writer?s view of the subject.
(Seismology) The actual point or plane of rupture of an earthquake.
Imaginary point used in parabolas, hyperbolas, and ellipses.
the oscilloscope control that converges the CRT electron beams to produce a sharp display.
The point in the earth where an earthquake occurs.
Causing light to form a point, or sharp image on the image sensor or film.
Adjusting a camera’s lens so that the subject/image is sharply defined. This can me accomplished manually by the photographer, or automatically by the camera.
The session when all the lanterns in the rig are angled in the correct direction, with the correct beam size.
the writer's main point or idea
To adjust the lens on a camera so that a sharp image is formed on the film plane.
The point where light converges to form a clear, sharp image.
Position in which rays of light from a lens converge to form a sharp image.
The point along a fault at which the rupture occurs. Also called the "hypocenter." (See also Epicenter.)
The quality of being clearly defined, with sharply outlined phantom images. Focus has also been described as the enhanced ability to hear the brief moments of silence between the musical impulses in reproduced sound.
A certain distance from the focusing lens. An adjustable distance setting on a laser engraving system, dependent on the focal length of the lens used.
A useful word for direct image focusing
The focus is the point on the optical axis of a lens or optical system to which parallel rays will converge. All Lasiris single line, multiple line and pattern projectors are focusable, (except for the factory-set LC series lasers), allowing the adjustment of the line thickness (or focus) at the desired projection distance. The projected line has a non-gaussian intensity distribution along its length but remains gaussian across the width. The line thickness is always measured at the 1/e2 points of the gaussian thickness profile. The 1/e2 points correspond to the points where the intensity is approximately 13.9% of the peak intensity (100%). Most focusable Lasiris lasers come with our unique C-Thru wrench, specially designed to make focus adjustment easy. The focus can be set in three easy steps. The pattern generating head from the laser projector must first be removed; then the focus is adjusted with the C-Thru wrench, and finally, the head is put back in its original place.
The act of adjusting a lens to make the image appear sharp and well defined. The best possible resolution of an image showing the image to be sharp and well defined.
A copy-camera setting for specified size of image.
The location where a fault slips during an earthquake (hypocenter).
(pl. foci) small area of diseased plants within a population
the place below ground where an earthquake starts
the point from which people, events, and other details in a story are viewed. See point of view.
Overall sharpness of the display.
feature of Medline that allows you to restrict retrieval to only those citations which contain the chosen concept as the main point of the article. See also “Major MeSH”.
the adjusting of the clarity or sharpness of an image by adjusting the lens or light source
The location on a fault within the Earth where an earthquake's slip began.
Point to which rays of light are brought to a sharp image point after passing through a lens.
A point beneath Earth's surface where the vibrations of an earthquake are thought to have originated. Also known as a hypocenter.
place where the light rays form an object in an optical system converge to form the image of the object.
The process of aiming a lighting instrument so that it illuminates a particular portion of the stage, including angling the beam, sizing the beam, and determining whether the edge of the beam should be sharply defined or diffuse.
(plural foci) The precise point within the Earth's crust or mantle where rocks begin to rupture or move in an earthquake.
One of two special points within an ellipse, whose separation from each other indicate the eccentricity. In a bound orbit, objects move in ellipses about one focus.
One of two points used to construct an ellipse. A point on the major axis of the resulting ellipse, offset toward one end of the major axis in such a way that that end of the major axis is just barely the closest place to the focus. In a planetary orbit, the location of the Sun. Also, in a telescope, the place where light is brought to a focus, producing an image.
The degree to which light rays coming from the same part of an object through different parts of the lens reconverge at the same point on the film frame, creating sharp outlines and distinct textures.
source of given set of earthquake waves.
Bringing all the light rays from a given subject to the same point on the film plane. This results in that object appearing to be sharply focused. The act of focusing the lens.
maximum clarity or distinctness of an image rendered by an optical system; "in focus"; "out of focus"
a central point or locus of an infection in an organism; "the focus of infection"
a point of convergence of light (or other radiation) or a point from which it diverges
a fixed reference point on the concave side of a conic section
cause to converge on or toward a central point; "Focus the light on this image"
bring into focus or alignment; to converge or cause to converge; of ideas or emotions
become focussed or come into focus; "The light focused"
put (an image) into focus; "Please focus the image; we cannot enjoy the movie"
an object that somebody with super-human powers kind of 'attunes' with their power, making that power more effective in some way - sorta like Green Lantern's power ring, or the Mighty Thor's hammer
the point at where an earthquake starts.- G H
The point where earthquake rupture or fault movement originates.
Adjustment of the distance of a lens to the film or plate surface to give a sharp image.
the point on the fault at which the first movement or break occurred.
The location of the onscreen insertion point. If a text box has the focus, characters typed by the user appear in the box. This does not refer to the position of the mouse on the screen.
A sharply defined point, center, or theme of an effort, written passage, undertaking, or presentation.
Lens adjustment to obtain sharply defined image. There are three types. Fixed focus/Focus free, Autofocus and manual focus.
The method of bringing the image into clear view on the image sensor.
This is the action of adjusting a lens to produce a sharp image. Requires the user to adjust the distance setting on the lens to focus the subject or image.
As a noun, the point where rays of light meet which have been reflected by a mirror or refracted by a lens, giving rise to an image of the source. As a verb, to adjust focal length for the clearest image and smallest spot size.
The sharpness of the photographic image. Go to top
The process of sharpening an image.
the underground starting place of an earthquake (also called the hypocenter).
An auto focus system comes with all camcorders. The camcorder tries to determine the subject of your video and focuses in on that subject. The accuracy of the auto focus can be affected by extreme or low light. Generally there is a manual override that allows you to adjust the focus manually.
Focus is the point where an image of an object or scene appears clearly with defined details.
the point at which light rays meet after passing through the cornea and lens; in normal eyes this point is on the fovea of the retina
Point within the Earth at which at which rock initially breaks to initiate an earthquake.
The place of origin of an earthquake or moonquake (as related to earthquakes).
to bring light rays from an object together to form an image
To move the lens, or film or digital sensor, in relation to the focal plane in order to record a sharp image on the film/sensor. (Can't forget Contax where the film actually moves for AF operation versus the lens.)
The oscilloscope control that adjusts the CRT electron beams to control the sharpness of the display.
Point at which converging rays meet and at which a clearly defined image can be obtained.
The domain of writing that demonstrates an awareness of audience and task while maintaining a clear purpose and making a point.
the adjustment of the distance setting on a lens to define the subject sharply.
The area inside the Earth where an earthquake happened. Also known as the Hypocenter.
The location where an earthquake begins. Rock ruptures at this spot, then seismic waves radiate outward in all directions. more details...
Verb used in lighting: to point the lanterns in the right direction and set the correct beam-spread and edge.
The point on a photo medium at which the parallel beams of light passing through a lens meet. It is at this point that a sharp image is acquired. (see auto-focus, fixed focus)
the point inside Earth which is the source of the earthquake.
The focus on a projector defines the minimum and maximum projection distances. Most projectors today have an Auto Focus button that will automatically focus the image. You can still adjust the image using the manual focus.
a central point; focal point
The sharpness of a picture/the act of causing a picture to be in focus
Sharpness of an image, or the adjustments made on a camera necessary to achieve this.
point at which light rays meet (noun); the ability to accommodate (verb)
Sharpness of a pixel or series of pixels on the CRT face plate. Also measured as the spot size.
The use of attitudes regarding uncertainty to narrow a risk image and visualize a particular risk perception.
The point at which light rays through a lens form an image. Go to Top
A point through which rays of light converge or from which rays of light appear to diverge when entering or emerging from an optical system.
To adjust a lens so that it produces the sharpest visual image on a screen, on a camera film plane, etc.
To adjust the direction, beam angle, sharpness and shape of a beam of light.
The focal point. An adjustment to the lens optics to improve the clarity of the picture.
The ability of a lens or system to bring image radiation to a point of convergence within the confines of the active detector sensing area.
The process of making the image sharp on film or sensor. Most cameras have auto focus or fixed focus. Manual focus cameras are adjusted through the lens or by using a guide on the camera.
To clarify a blurry image.
In two-channel audio, focus relates to the ability of a recording or pair of speakers to keep sound-stage images-especially those in the central area-properly sized and positioned. See also Center channel; Imaging.
To adjust a remote sensing system to produce a sharp, distinct image.
That point within the Earth from which originates the first motion of an earthquake and its elastic waves.
The point at which rays of light converge for any given point on the object in the image. Also called the focal point.
is the concentration of a topic on one central point or issue. Form
One of two fixed points inside an ellipse from which the sum jof the distances to any point on the ellipse is a constant.
Point where the rays of light converged by a mirror or lens meet.
the point below the surface of the earth where an earthquake begins
To adjust the distance between the lens and an image to make the image as sharp as possible.
The center of interest or activity. In software, focus refers to the area of the screen where the insertion point is active.
Focus refers to the degree to which light rays coming from any particular part of an object pass through the lens and reconverge at the same point on a frame of the film negative, creating sharp outlines and distinct textures that match the original object. This optical property of the cinema creates variations in depth of field -- through shallow focus, deep focus, and techniques such as racking focus. Dziga Vertov's films celebrated the power of cinema to create a "communist decoding of reality", most overtly in Man with the Movie Camera ( Chelovek s kinoapparatom, USSR, 1929).
1. The point at which the rays of light coming through the lens converge to form a sharp image. The picture is "in focus" or sharpest when this point coincides with the film plane. 2. To change the lens-to-film distance (or the camera-to-subject distance) until the image is sharp.
The initial point within the Earth that ruptures in an earthquake, directly below the epicenter.
(1) A point at which rays of light meet after being refracted or reflected. (2) Focal point of a lens. (3) The clear and sharply-defined condition of an image, as in "This image is in focus," meaning it is sharp and well-defined. (4) Adjustment of the distance setting on a lens to obtain a sharply-defined image.
The focus is the point within the Earth where an earthquake rupture starts. The epicenter is the point directly above it at the surface of the Earth. Distance from earthquakes and earthquake locations are measured from the epicenter.
Nearly every camera we sell possesses some kind of autofocus, a technology which lets the camera focus automatically on the central subject in the frame as you press the shutter button. Many offer multipoint autofocus, which makes it easier to take tricky shots like off-center portraits. Multipoint autofocus uses several points (often between 3 and 9) to assess a framed shot and set focus. Selectable multipoint autofocus gives the user control over which point is used as the focus point. More sophisticated cameras may also offer manual focus, either as a set of predetermined focus settings, or as a manual focus ring or lever. Manual focus gives you increased control over the detail and clarity of your photos, especially if you plan on taking non-traditional shots and close-ups.
The point at which light rays come together to form a sharp, clear image.
The process by which a lighting instrument is either manually or remotely positioned to light a specific part of the stage. With conventional fixtures focus is performed after lighting equipment is hung in place and is connected to the proper circuit. Automated fixtures can be remotely focused and may have many different focuses for a particular show. Focus presets are often created as libraries of focus points for a show. Focus presets as well as conventionally focused equipment must be checked any time a show changes venues, as the relationship of lighting instrument and stage may change. See Also: Conventional Lighting Fixture Lighting Instrument
The points around which an ellipse is drawn
The spot where the wavefront originating at a point on the source is converged to form a point image.
The underground location of the seismic event that causes an earthquake.
Adjusting the point of maximum sharpness when photographing a subject. Autofocus cameras handle this automatically, but note that when shooting close up, it is often quicker and more accurate to switch to manual focus.
The point or plane in which light rays form a minimum-sized spot that has the proper intensity distribution. Also the act of bringing light to a fine spot.
Place at the focal length where light rays from an object are converged by a lens or concave mirror.
1) To bring beams of light into a convergent point, or focal point. An image created by beams of light at the focal point is said to be "in focus." Focused images have sharp edges, as opposed to being fuzzy or blurry. In smaller telescopes, astronomers place an eyepiece close to the focus in order to project the telescope focal point onto an observers eye. In larger telescopes, astronomers place a CCD camera at the focal point to capture the focused light. 2) One of two fixed points inside an ellipse. The foci of an ellipse help to define the curve of the ellipse itself.
the point where the earthquake begins below the earth's surface
Proper sharpness of the outline of an image.
A means of moving the specimen closer or further away from the objective lens to render a sharp image. On some microscopes, the stage moves and on others, the tube moves. Rack and pinion focusing is the most popular and durable type of focusing mechanism.
An image, or image point or region, is said to be in focus if light from object points is converged about as well as possible in the image; conversely, it is out of focus is light is not well converged. The border between these conditions is sometimes defined via a circle of confusion criterion.
The point at which the light beam is directed. Also, a function of the luminaire related to the direction of the beam, as specified by pan and/or tilt data. The term also relates an optical adjustment that results in a clearly defined image.
The focus, or focal point, of a lens is the point onto which collimated light parallel to the axis is focused. Although the focus is conceptually a point, physically, the focus has a spatial extent, called the Airy disc, or blur circle, due to the width of the aperture of the imaging optics.
The position of the lens at the exact distance that the subject is in sharp detail.The degree of clarity of an image refracted through a lens onto a screen or film emulsion.
one of two special points along the long axis of an ellipse such that the addition of the distances (satellite to focus#1) plus (satellite to focus#2) always equals the same numerical value. It is not at the center of the elliptical orbit unless the orbit is perfectly circular.
In common usage, the power or dioptric value of a lens; theoretically, it is the same as the focal point.
The process of bringing one plane of the scene into sharp focus on the image sensor.
A focus (pleural foci) is a central point at which rays of light, heat or any other type of radiation meet after being reflected or refracted.
The adjustment of an optical instrument to provide a sharp, clear image of the viewed object.
The fixed point or points (foci) used to define a conic section.
In geometry, the foci (singular focus) are a pair of special points used in describing conic sections. The four types of conic sections are the circle, parabola, ellipse, and hyperbola.
In geometrical optics, a focus, also called an image point, is the point where light rays originating from a point on the object converge . Although the focus is conceptually a point, physically the focus has a spatial extent, called the blur circle. This non-ideal focusing may be caused by aberrations of the imaging optics.
Focus DIY is a privately owned chain of DIY stores in the UK. It serves the light DIY market sector, and most stores have some form of garden centre. Its main competitors are B&Q and Homebase.