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Definition - "A category of artistic composition, as in music or literature, characterized by similarities in form, style, or subject matter."

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Definition - "35 mm film is a film gauge used in filmmaking, and the film standard. In motion pictures that record on film, 35 mm is the most commonly used gauge."

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Definition - "A twin-lens reflex camera is a type of camera with two objective lenses of the same focal length. One of the lenses is the photographic objective or "taking lens", while the other is used for the viewfinder system, which is usually viewed from above at waist level."

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Defintion - "A camera obscura is a darkened room with a small hole or lens at one side through which an image is projected onto a wall or table opposite the hole. "Camera obscura" can also refer to analogous constructions such as a box or tent in which an exterior image is projected inside."

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Definition - "The gelatin silver process is the most commonly used chemical process in black-and-white photography, and is the fundamental chemical process for modern analog color photography. As such, films and printing papers available for analog photography rarely rely on any other chemical process to record an image."

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An element of art defined by a point moving in space. Linemay be two-or three-dimensional, descriptive, implied, orabstract

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An element of art that is two-dimensional, flat, or limited toheight and width.

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An element of art that is three-dimensional and encloses
volume; includes height, width AND depth (as in a cube, a
sphere, a pyramid, or a cylinder). Form may also be free
flowing.

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The lightness or darkness of tones or colors. White is the
lightest value; black is the darkest. The value halfway
between these extremes is called middle gray.

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An element of art by which positive and negative areas aredefined or a sense of depth achieved in a work of art .

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An element of art made up of three properties: hue, value,
and intensity.

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An element of art that refers to the way things feel, or lookas if they might feel if touched.

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Cool colors include green, blue, and purple, and variations of those three colors. Blue is the only primary color within the cool spectrum. Greens take on some of the attributes of yellow, and purple takes on some of the attributes of red. They are often more subdued than warm colors.

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One group of colors in the color wheel is associated with the sun, warmth and fire. These colors are called warm colors since they evoke warm feelings in people. Yellow, red, orange and different shades of these colors are warm colors. ... These are the colors of preference for calm, timid children of low energy.

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In the context of interior design, neutral means without color. Neutrals such as beige, ivory, taupe, black, gray, and shades of white appear to be without color, but in many applications these hues often have undertones. ... White might be slightly ivory, yellow, bluish or peachy.

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Complementary colors are pairs of colors which, when combined or mixed, cancel each other out by producing a grayscale color like white or black. When placed next to each other, they create the strongest contrast for those two colors. Complementary colors may also be called "opposite colors"

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Monochromatic colors are all the colors of a single hue. Monochromatic color schemes are derived from a single base hue and extended using its shades, tones and tints. Tints are achieved by adding white and shades and tones are achieved by adding a darker color, grey or black.

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Constructive criticism is a helpful way of giving feedback that provides specific, actionable suggestions. Rather than providing general advice, constructive criticism gives specific recommendations on how to make positive improvements.

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Plagiarism is the representation of another author's language, thoughts, ideas, or expressions as one's own original work. In educational contexts, there are differing definitions of plagiarism depending on the institution. Plagiarism is considered a violation of academic integrity and a breach of journalistic ethics.

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Ethics or moral philosophy is a branch of philosophy that "involves systematizing, defending, and recommending concepts of right and wrong behavior". The field of ethics, along with aesthetics, concerns matters of value; these fields comprise the branch of philosophy called axiology.

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Use subjective when you're talking about an opinion or feeling that is based on an individual's perspective or preferences. Use objective when you're talking about something—like an assessment, decision, or report—that's unbiased and based solely on the observable or verifiable facts.

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Copyright protects original work, whereas a trademark protects items that distinguish or identify a particular business from another. Copyright is generated automatically upon the creation of original work, whereas a trademark is established through common use of a mark in the course of business.

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The rule of thirds is a "rule of thumb" for composing visual images such as designs, films, paintings, and photographs.

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Leading lines are lines that appear in a photograph that have been framed and positioned by the photographer to draw the viewer's eye towards a specific point of interest. These lines often draw the viewer's eye in a specific direction or towards a designated portion of the photograph.

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What is the Golden Ratio in Photography? The golden ratio is a ratio of approximately 1.618 to 1. Artists have used this ratio for centuries to create works of art from paintings to architecture. Beethoven uses it in his famous fifth Symphony. It truly is all around us, including in our own bodies.

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Negative space in photography, design, sculpture or any other creative pursuit is equally as important as is positive space in overall composition. ... Simply put, positive space is the actual subject while negative space (also called white space) is the area surrounding the subject.

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Simply put, positive space is the actual subject while negative space (also called white space) is the area surrounding the subject. The latter acts as breathing room for your eyes. Too little negative space results in cluttered and busy photographs with every element in the photo screaming for the viewer's attention.

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In lighting design, backlighting is the process of illuminating the subject from the back. In other words, the lighting instrument and the viewer face each other, with the subject in between. This creates a glowing effect on the edges of the subject, while other areas are darker.

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Diffused light, or soft light, is light that's filtered by something. Sunlight through a sheer curtain is diffused. Light from behind a lampshade is diffused compared to the direct light of a bare bulb. The lampshade softens and scatters the light.

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Also called general lighting, ambient lighting provides overall illumination for a room, and is intended to create a uniform light level throughout a space, independent of any special lighting that may be needed in targeted areas of a room.

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Chiaroscuro, in art, is the use of strong contrasts between light and dark, usually bold contrasts affecting a whole composition. It is also a technical term used by artists and art historians for the use of contrasts of light to achieve a sense of volume in modelling three-dimensional objects and figures.

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A silhouette is the image of a person, animal, object or scene represented as a solid shape of a single colour, usually black, with its edges matching the outline of the subject. The interior of a silhouette is featureless, and the silhouette is usually presented on a light background, usually white, or none at all.

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A diptych is any object with two flat plates which form a pair, often attached by hinge. For example, the standard notebook and school exercise book of the ancient world was a diptych consisting of a pair of such plates that contained a recessed space filled with wax.

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A triptych is a work of art that is divided into three sections, or three carved panels that are hinged together and can be folded shut or displayed open. It is therefore a type of polyptych, the term for all multi-panel works.

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Orthographic projection is a means of representing three-dimensional objects in two dimensions. It is a form of parallel projection, in which all the projection lines are orthogonal to the projection plane, resulting in every plane of the scene appearing in affine transformation on the viewing surface.

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In geometric optics, distortion is a deviation from rectilinear projection; a projection in which straight lines in a scene remain straight in an image. It is a form of optical aberration.

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Barrel and pincushion distortions can be caused by a stop or aperture. An aperture is a hole or opening, this could be the boundary of the lens. A stop restricts the amount of rays coming into the lens. Barrel distortion is caused when the stop appears before the lens.

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ISO is your camera's sensitivity to light as it pertains to either film or a digital sensor. A lower ISO value means less sensitivity to light, while a higher ISO means more sensitivity.

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The ASA (American Standards Association) scale is an arbitrary rating of film speed; that is, the sensitivity of the film to light. If everything else is kept constant, the required exposure time is inversely proportional to the ASA rating.

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An image sensor is a device that allows the camera to convert photons – that is, light – into electrical signals that can be interpreted by the device. The first digital cameras used charge-coupled devices, facilitating movement of the electrical charge through the device so it could be modulated.

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Film grain is the visible silver crystals in a film negative's emulsion. These light-sensitive silver halides change into pure metallic silver when exposed to light, which is how an image is captured on film. So, grain is an inherent part of a film image.

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In digital photographs, the term noise refers to a certain type of visual distortion. It looks similar to grain found in film photographs, but can also look like splotches of discoloration when it's really bad, and can ruin a photograph.

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In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An optical system typically has many openings or structures that limit the ray bundles.

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In optics, the f-number of an optical system such as a camera lens is the ratio of the system's focal length to the diameter of the entrance pupil. It is also known as the focal ratio, f-ratio, or f-stop, and is very important in photography.

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The focal length of an optical system is a measure of how strongly the system converges or diverges light; it is the inverse of the system's optical power. A positive focal length indicates that a system converges light, while a negative focal length indicates that the system diverges light.

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For many cameras, depth of field is the distance between the nearest and the farthest objects that are in acceptably sharp focus in an image. The depth of field can be calculated based on focal length, distance to subject, the acceptable circle of confusion size, and aperture.

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In photography, bokeh is the aesthetic quality of the blur produced in out-of-focus parts of an image. Bokeh has also been defined as "the way the lens renders out-of-focus points of light". Differences in lens aberrations and aperture shape cause very different bokeh effects.

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In photography, shutter speed or exposure time is the length of time that the film or digital sensor inside the camera is exposed to light when taking a photograph. The amount of light that reaches the film or image sensor is proportional to the exposure time. 1⁄500 of a second will let half as much light in as 1⁄250.

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Bulb mode is simply a shutter speed option that you can select in Manual mode on your camera. It allows your shutter speed to be any length you choose: one second, one minute, 17 minutes, or anything else.

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Motion blur is the apparent streaking of moving objects in a photograph or a sequence of frames, such as a film or animation. It results when the image being recorded changes during the recording of a single exposure, due to rapid movement or long exposure.

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Both a tripod and monopod are accessories designed to support a camera — where the two differ are the legs. A tripod has three legs (that's the “tri”). A monopod is a camera support that has one leg (that's the “mono”). ... Construction is often similar and many brands that make tripods also make monopods.

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Camera shake is a term used to define the act of accidentally shaking a camera during shooting due to unsteady hands, which results in blurry images. This generally occurs more often if you're shooting on a low shutter speed or with a heavy lens, and can be avoided by using a tripod and cable release setup.

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Auto Mode. Automatic Exposure is when the camera chooses the optimum shutter speed, aperture, ISO and flash settings for your shot. All you need to do is point and shoot. This can be good if you have no idea of what settings to choose and also when you need to shoot quickly.

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As the name suggests, “Manual” mode stands for a full manual control of Aperture and Shutter Speed. In this mode, you can manually set both the aperture and the shutter speed to any value you want – the camera lets you fully take over the exposure controls.

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Aperture priority, often abbreviated A or Av on a camera mode dial, is a setting on some cameras that allows the user to set a specific aperture value while the camera selects a shutter speed to match it that will result in proper exposure based on the lighting conditions as measured by the camera's light meter.

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Shutter priority (usually denoted as S on the mode dial), also called time value (abbreviated as Tv), refers to a setting on some cameras that allows the user to choose a specific shutter speed while the camera adjusts the aperture to ensure correct exposure.

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The "program" in Program mode refers to the fact that you can fiddle with the shutter speed and aperture combo. Whether you choose Auto or Program, the camera chooses an aperture and shutter speed combination that will give you a good exposure.

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Long-exposure, time-exposure, or slow-shutter photography involves using a long-duration shutter speed to sharply capture the stationary elements of images while blurring, smearing, or obscuring the moving elements.

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Time-lapse photography is a technique in which the frequency at which film frames are captured is much lower than the frequency used to view the sequence. When played at normal speed, time appears to be moving faster and thus lapsing.

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Light painting, painting with light, light drawing, or light art performance photography are terms that describe photographic techniques of moving a light source while taking a long exposure photograph

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Panning photography freezes objects in motion in a still frame. Explore ways to pan your camera, what shutter speed to use, and other ways to add action to your shots.

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Burst mode is a camera function that allows you to capture a series of photographs in quick succession. With burst mode activated, you can hold down the shutter button, and your camera will rattle off a set of photos.

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In photography, the metering mode refers to the way in which a camera determines exposure. Cameras generally allow the user to select between spot, center-weighted average, or multi-zone metering modes.

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Partial Metering is a camera-metering mode in which the metering is weighted at the center of the viewfinder (unlike center-weighted in which the camera averages the exposure based on the reading at the center). ... Partial metering will enable correct exposure of your subject, however the background will be over-exposed.

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Center weighted metering is a camera metering mode. ... For example, if you are shooting a natural light portrait and have placed your subject in the center of the frame, the camera will determine the correct exposure for their face while placing a significantly lesser importance on the background.

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Evaluative metering is the default metering mode on most cameras. It ensures that the camera will automatically adjust to the right exposure setting even when the ambient lighting shows greater contrast.

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By definition 18% gray is the “mid-point between black and white on a logarithmic or exponential curve.” Think of it this way; it is simply halfway between black and white. ... Interestingly enough, 18% gray cards will reflect the equal amount of light that they receive.

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A shadow is defined as a contour of an object that forms due to the blockage of a light source. ... Shadow photography is also defined as the manipulation of the light source, exposure of the shadow to add or remove darkness from the image, and the increased dramatic depth of a photo.

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Midtones. A mid-tone is precisely that – all luminance values that are not dark or light are considered to be mid-tones. Most of the time our camera meter will attempt to expose for this average brightness when in 'Automatic Mode.

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Highlights are the lightest elements in an image, whereas shadows are the darkest areas. Dynamic range is the ratio between those vivid highlights and dark shadows, from bright white to pure black. That range is key to an image's depth and drama. If a photo has poor dynamic range, the image can appear flat or gray.

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A vignette is a darker border - sometimes as a blur or a shadow - at the periphery of photos. It can be an intentional effect to highlight certain aspects of the image or as a result of using the wrong settings, equipment or lens when taking a photo.

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“Sepia photography is similar to black-and-white photography in that it's monochromatic, meaning one tone or one color. ... While traditional black-and-white photographs use a standard grayscale to create highlights and shadows, sepia-toned photos use a reddish-brown tone to create that spectrum.

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An AF point is a specific part of the frame where the camera is able to focus on something. When looking through the viewfinder, these points are denoted by small squares clustered around the centre of the frame.

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Bracketing is a technique where a photographer takes shots of the same image using different camera settings. This gives the photographer multiple variations of the same image to choose from or combine to ensure that they get the perfect shot.

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It shows you what you have set in terms of exposure compensation and/or auto exposure bracketing. It is only shown in exposure modes that use exposure compensation or auto exposure bracketing. The scale on the side shows the measurement from the light meter based on the current exposure parameters.

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Exposure compensation is used to alter exposure from the value selected by the camera, making photographs brighter or darker. ... Exposure is a matter of personal preference, and an exposure brighter or darker than that selected by the camera may sometimes better reflect the photographer's intent.

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In simpler language, white balance in digital photography means adjusting colors so that the image looks more natural. We go through the process of adjusting colors to primarily get rid of color casts, in order to try to resemble the colors in our images with reality.

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The Application bar across the top contains a workspace switcher, menus (Windows only), and other application controls. ... The Document window displays the file you're working on. Document windows can be tabbed and, in certain cases, grouped and docked. Panels help you monitor and modify your work.

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The toolbar is where Photoshop holds the many tools we have to work with. There are tools for making selections, for cropping and retouching images, for adding shapes and type, and many more!

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Palettes [shown right] are groups of tools used to edit and manipulate your image. Photoshop contains over two dozen palettes that can be shown or hidden by using the Window menu and selecting the palette you wish to reveal.

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The menu bar is used to open and save files, adjust the canvas size, access some of the editing tools, open and close various windows, and more. The menu bar consists of 11 items: File, Edit, Image, Layer, Select, Filter, Analysis, 3D, View, Window, and Help.

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The Options Bar is the horizontal bar that runs underneath the Menu Bar in Photoshop. You can turn it on and off through the Windows menu, so if you don't see it on your screen, you definitely want to turn it on with Window > Options. The job of the Options Bar is to set the options of the tool you are about to use.

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The word Crop can be defined as “to trim” or “cut back”. The Crop tool in most image processing programs is used to trim off the outside edges of a digital image. ... Photographers have historically cropped images to direct the viewer's eye to a particular subset of a larger image.

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.The aspect ratio of an image is the ratio of its width to its height, and is expressed with two numbers separated by a colon, such as 16:9, sixteen-to-nine. For the x:y aspect ratio, the image is x units wide and y units high.

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Image resolution is the detail an image holds. The term applies to digital images, film images, and other types of images. Higher resolution means more image detail. Image resolution can be measured in various ways. Resolution quantifies how close lines can be to each other and still be visibly resolved.

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DPI refers to the number of printed dots contained within one inch of an image printed by a printer. PPI refers to the number of pixels contained within one inch of an image displayed on a computer monitor.

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SOOC. Straight out of camera. Images as shot out of camera; implied is no post processing, slang in photography groups.

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A file format is a standard way that information is encoded for storage in a computer file. It specifies how bits are used to encode information in a digital storage medium. File formats may be either proprietary or free and may be either unpublished or open.

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JPEG is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted, allowing a selectable tradeoff between storage size and image quality.

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PSD (Photoshop Document) is an image file format native to Adobe's popular Photoshop Application. ... PSD files are commonly used for containing high quality graphics data.

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Portable Network Graphics is a raster-graphics file format that supports lossless data compression. PNG was developed as an improved, non-patented replacement for Graphics Interchange Format — unofficially, the initials PNG stood for the recursive acronym "PNG's not GIF".

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A camera raw image file contains minimally processed data from the image sensor of either a digital camera, a motion picture film scanner, or other image scanner. Raw files are named so because they are not yet processed and therefore are not ready to be printed or edited with a bitmap graphics editor.

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In photography and videography, multi-exposure HDR capture is a technique allowing to capture high dynamic range images by taking and then combining several different exposures of the same subject matter. Images captured by cameras allow differentiation only within a certain range of luminosity.

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In photography and cinematography, a multiple exposure is the superimposition of two or more exposures to create a single image, and double exposure has a corresponding meaning in respect of two images. The exposure values may or may not be identical to each other.

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A triadic color scheme uses three colors that are evenly spaced around the color wheel. For example, the three primary colors form a triadic color scheme: red, yellow, and blue. ... You can use all three colors in a photo but also a combination of two will work. The difficult part is to find them when photographing.

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When we talk about blue hour photography, we refer to pictures taken during a specific window of time that generally happens twice a day (well, apart a bunch of exceptions) – specifically when the sun still needs to rise in the morning and right after it has set in the evening.

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In photography, the golden hour is the period of daytime shortly after sunrise or before sunset, during which daylight is redder and softer than when the sun is higher in the sky. The golden hour is also sometimes called the "magic hour," especially by cinematographers.

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Macro photography is extreme close-up photography, usually of very small subjects and living organisms like insects, in which the size of the subject in the photograph is greater than life size.

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In film and photography, a prime lens is a fixed focal length photographic lens, typically with a maximum aperture from f2.8 to f1.2. The term can also mean the primary lens in a combination lens system. Confusion between these two meanings can occur if context doesn't make the interpretation clear.

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A telephoto lens will allow you to take photos of subjects that are farther away. This comes in handy when you are taking photos of things that you can't, or don't want to, get close to. Having more distance between you and your subject can help some people feel more at ease in front of the camera.