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A darkened enclosure having an aperture usually provided with a lens through which light from external objects enters to form an image of the objects on the opposite surface.

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

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a common type of image sensor format that's used in film photography.

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A twin-lens reflex camera (TLR) 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" (the lens that takes the picture), while the other is used for the viewfinder system, which is usually viewed from above at waist level

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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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A keeper or custodian of a museum or other collection.

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Museums of History NSW is changing the way our past is understood and our future will be experienced.

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A public display of works of art or items of interest, held in an art gallery or museum or at a trade fair.

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A room or building for the display or sales of works of art

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A building in which objects of historical, scientific, artistic, or cultural interest are stored and exhibited.

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Photography Studio means the workshop of a photographer, which may include the retail sale of portraits and/or photographs produced by the photographer and a photography shop.

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Line is a point that continues; it implies motion. Lines are open and lead the eyes into a photograph or to an interesting point of the photo.

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Shape in photography is exactly what it sounds like: The two dimensional appearance of objects as they're captured by your camera. If you take a photo of of a cubed-shaped suitcase, you'll see see its shape: a square.

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Color is a component of light that is separated when it's reflected off an object.Color begins with light. The color we see is influenced by the characteristics of the source and what it reflects off. Wavelenghts of reflected light determine what color we see.

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What Is Texture in Photography? In photography, texture is the visual depiction of variations in the color, shape, and depth of an object's surface.

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Value defines how light or dark a given color or hue can be. Values are best understood when visualized as a scale or gradient, from dark to light. The more tonal variants in an image, the lower the contrast. When shades of similar value are used together, they also create a low contrast image

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Form refers to when shape takes on three dimensions. Form is created by shadows and highlights on an object in the photograph. You can see in these two photos how shape becomes form when light hits the subject.

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The rule of space relates to the direction the subject of the photograph is moving in, or even just looking in. If you photograph a runner, the rule says that you should have more space in front of the runner than behind, thus giving him space to move into within the picture.

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Balance is a composition technique that arranges elements within the frame to achieve equal visual weight across the image. The visual weight of an element essentially measures how much attraction it draws from the viewer.

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Variety is about varying elements and objects in your image, to avoid making them boring. Variety can also be varying your angles, exposure, composition, Visit.

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Pattern in Photography is a regularity within a scene. It's elements of the scene that repeat themselves in a predictable way. Pattern can be found everywhere and is commonly seen within shapes, colors or textures

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Proportion in photography is usually comparing size of objects, or the amount of one thing to the whole. We generally think of comparing size when talking about proportion. By comparing the size of one object to another, it can give more or less importance to it.

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Movement in photography simply refers to elements of a photo that are moving (or appear to be moving). So you might portray movement by capturing an image of a skateboarder in the air, or a car driving on the street, or a person running on the sidewalk.

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Unity describes the visual relationship between elements in a photograph. It helps create a cohesive image. Using similar colors or tones, concepts or elements cultivates a sense of unity. Disunity is the opposite.

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Emphasis draws viewers into your image and holds them there long enough to tell your story. It adds visual weight to your main subject and tells viewers what to focus on.

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Radial balance is a form of symmetrical balance where elements within an image radiate outwards from a central point. This way, they create an even pattern, adding depth and visual movement to the picture. It can help bring the viewer's eyes to a subject placed in the centre.

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“the quality of being made up of exactly similar parts facing each other or around an axis.” In photography symmetry appears when parts of your composition mirror other parts. It is created when two halves of your scene look the same and balance each other out

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When a photo is asymmetrical, it has unequal visual weight on either side. But those visual elements balance out each other. This means that an asymmetrical photo still follows the rules of composition.

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combining two or more elements in the same picture, highlighting the interesting contrast between them, to create an eye-catching and thought-provoking image.

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Images created using photography materials and equipment that don't have an immediate association with the physical world.

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Green, blue, and magenta are cool colors, while yellow, orange, and red are warm colors. The difference in warmer and cooler colors is more clear if the two colors are further apart on the color wheel. It means warm and cool colors often complement each other.

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Warm colors are more active and emotionally charged. They jump out at the viewer, attracting attention and drawing interest. In general, warm colors are rarer than cool colors, so an image which has even a small splash of warmth can stand out.

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Neutral colors are muted shades that appear to lack color but often have underlying hues that change with different lighting. Examples of neutral colors include beige, taupe, gray, cream, brown, black, and white. While neutral colors are not on the color wheel, they complement primary and secondary colors.

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Complementary colors—that is, colors opposite one another on the color wheel—can be used very effectively in visual art, including photography. When juxtaposed, complementary colors make each seem brighter and more vivid, creating a powerful visual effect.

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Monochrome photography is any photography that utilizes differing amounts of light instead of different colors to capture and represent images.

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Gradients, also known as color transitions, are a gradual blending from one color to another color (or, if you're in a colorful mood, from one color to another color to another color—gradients aren't limited to two shades).

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Backlighting is caused when the light source is behind the subject shining towards the camera. If your subject obscures the light source - and if you expose for the background rather that your subject – the result will be a silhouette. Silhouettes look flat, almost like a cardboard cut-out.

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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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Ambient lighting is essentially indirect lighting. A soft light that is reflected off the ceiling. It reduces the shadows on people's faces and fills the room with equal brightness, opening up the architecture and drawing people in. Ambient light may be produced in a number of ways.

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Chiaroscuro is a renaissance painting technique which literally means “light-dark” in Italian. What I like to call atmospheric chiaroscuro is more immersed in the style of Caravaggio (1571-1610)—darker backgrounds but also high contrast between highlights and shadows with harmonious saturated tones.

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A silhouette is a solid, dark image of a subject against a brighter background. Silhouette pictures usually show the subject in profile.

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Diptychs are a set of two photos you can use to tell a story and emphasise contrast. Or you can create one composition using two entirely different images. The word itself comes from ancient Greek. Think of diptychs as collages.

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The artist constructs a space, place or environment to embed his view, emotion or feeling of that moment using a variety of materials, color and lighting to construct what becomes the photographed image. In many cases, the actual constructed art object is destroyed, and the photograph is the statement.

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Copying media (especially images) from other websites to paste them into your own papers or websites. Composing a piece of music that borrows heavily from another composition.

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Ethics are the principles that guide how we take and share photographs. Photography ethics are subjective, contextual, and fluid, meaning that every person's ethics will be different, because ethics are based on a person's life experience and values.

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A photographic triptych is a common style used in modern commercial artwork. The photographs are usually arranged with a plain border between them. The work may consist of separate images that are variants on a theme, or may be one larger image split into three.

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#1 The art of writing words with the proper letters according to standard usage.
#2 the representation of the sounds of a language by written or printed symbols.
#3 A part of language study that deals with letters and spelling.

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Barrel distortion describes a type of distortion wherein lines that are straight in real life appear to curve inwards (like the walls of a barrel). A good way to check for barrel distortion is to look for parallel lines in the area you are shooting and see if the lines appear parallel in your image.

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Pincushion distortion is where straight lines bend or “pinch” inward from the center of the image. Usually pincushion distortion happens at the telephoto end (ie. 200mm) of a zoom lens such as a 70-200mm lens. It can actually be great for portraits because it can make people look thinner than they are!

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What is the rule of thirds? The rule of thirds is a composition guideline that places your subject in the left or right third of an image, leaving the other two thirds more open. While there are other forms of composition, the rule of thirds generally leads to compelling and well-composed shots.

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Aperture refers to the opening of a lens's diaphragm through which light passes. It is calibrated in f/stops and is generally written as numbers such as 1.4, 2, 2.8, 4, 5.6, 8, 11 and 16.

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The “f” in f-stop stands for the focal length of the lens. While focal length itself refers to the field of view of a lens, f-stop is about how much light you allow to hit the sensor via the aperture opening.

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The focal length of a lens is determined when the lens is focused at infinity. Lens focal length tells us the angle of view—how much of the scene will be captured—and the magnification—how large individual elements will be. The longer the focal length, the narrower the angle of view and the higher the magnification.

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The depth of field is the distance between the nearest and the furthest objects that are in acceptably sharp focus in an image captured with a camera.

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Bokeh is a word with Japanese origins, defined as “the way the lens renders out-of-focus points of light.” The word comes from the Japanese word boke (暈け or ボケ), which means “haze” or “blur.” (The “h” was introduced to help English speakers pronounce the word correctl

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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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Leading lines are a compositional technique where human-made or natural lines lead the viewer's eyes through a photograph to the subject or the heart of the image

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The golden ratio is a guide to where to place a subject (a tree, person, building, etc.) or element in a photo (like the horizon) where it will be most pleasing to the eye.

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Negative space photography is related to minimalist photography. It emphasizes not just the subject, but the empty space around the subject. The viewer's eyes may be drawn to a central figure, but they can't help noticing the large section of emptiness that surrounds and defines that figure.

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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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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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Manual mode means you're in charge of adjusting aperture — one of photography's most important elements. It's the hole in the back of your lens that controls light and depth of field via f-numbers. If you want more exposure, you'll need a low f-number for a wide aperture.

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In digital photography, camera technology now features modes that can help adjust those settings for you. One of those modes is aperture priority. With it, the photographer selects a specific aperture value and the camera autoselects the proper shutter speed based on how much light it detects.

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Shutter priority, also called time value, refers to a setting on 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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In program mode the camera selects and sets both the shutter speed and the aperture. For any given brightness of light, the camera has been programmed to set a specific combination of shutter speed and aperture. In low light, for example, the camera might set 1/30 second and f4.

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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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The Bulb setting on camera shutters is a momentary-action mode that holds shutters open for as long as a photographer depresses the shutter-release button.

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Motion blur is a long exposure photography technique that lets you convey the feeling of movement or action in a still image. “It gives us the ability to see things in a way that we can't on our own,” says photographer Chris Sidla.

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A tripod is a three-legged stand designed to support a camera. Cameras are mounted to a tripod, also referred to as “sticks,” for stability. Tripods utilize a fluid head. This also allows the camera to pan left and right or tilt up and down.

A monopod, also called a unipod, is a single staff or pole used to help support cameras, binoculars, rifles or other precision instruments in the field.

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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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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 is a photographic technique where light is “painted” or “drawn” into the photograph using a hand held light source during a long exposure.

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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, also called continuous shooting mode, sports mode, continuous mode, or burst shot, is a shooting mode in still cameras where several photos are captured in quick succession by either pressing the shutter button or holding it down.

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18% Grey 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.

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Whereas multi-segment or multi-zone metering takes exposure readings from across the whole image frame, in spot metering mode the camera takes a measurement from a single point or spot. This area is often at the centre of the frame, but it may be linked to the active AF point.

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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).

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Centre-weighted average metering concentrates the metering on the central part of the viewfinder but also takes the rest of the frame into consideration. This mode is favorable when you want to capture a well-balanced exposure, but biased towards whatever is right in the middle of the shot.

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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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Shadows change shape, intensity, and even color along with the angle, direction, and temperature of light. Any photo that uses shadows as a prominent part of the composition — to enhance the contrast of a subject or as the subject itself — is shadow photography.

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midtone (plural midtones) (photography, art) A medium tone, one that is neither very dark nor very light.

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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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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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Technically speaking, sepia toning is a chemical process that converts the metallic silver in the emulsion of a photographic print into a silver sulfide compound. This changes the color of the resulting image and makes the photo more resistant to environmental pollutants.

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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 the process of shooting the same image, shot, or scene multiple times using different camera settings resulting in different exposures. Cinematographers and photographers either bracket the camera's aperture, ISO, or shutter speed for varying exposures.

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The exposure meter indicates the level of light reaching the sensor. Too much light results in over exposure which gives you a photo that is too light and lacking detail. Too little light results in under exposure which gives you a photo that is too dark and again, lacking detail.

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Exposure compensation basically helps you override automatic exposure adjustments your camera makes in situations with uneven light distribution, filters, non-standard processing, or underexposure or overexposure. It lets you take control of your image's brightness by manually increasing or decreasing exposure.

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White balance (WB) is the process of removing unrealistic color casts, so that objects which appear white in person are rendered white in your photo. Proper camera white balance has to take into account the "color temperature" of a light source, which refers to the relative warmth or coolness of white light.

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Workspace Switcher displays a visual representation of your workspaces, as shown in Figure 4–3. Figure 4–3 shows the Workspace Switcher when the Java Desktop System session contains four workspaces. Your workspaces appear as buttons on the panel application.

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A thin board or slab on which an artist lays and mixes colors.

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In a program with a graphical user interface a strip of icons used to perform certain functions.

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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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Essentially, an Options bar is a horizontal menu at the top of the main Photoshop window that lets you customize a tool. Let's see an Options bar in action. Select the Rectangular (or any other) Marquee tool. At the top of the Photoshop window, you'll see a new row of icons and settings display.

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The Crop tool removes the part of an image surrounding the selection. Crop to remove distractive background elements and create a focus on your desired object in the image. When you crop an image, by default, the resolution remains the same as the original image.

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The aspect ratio is the proportional relationship between an image's width and height.

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The amount of detail in an image. Digital images are measured by the number of pixels per inch (ppi). For printing, resolution is measured by the number of dots printed in a linear inch