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A gradient is a design element made up of colors that gradually fade into one another.

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Monochromatic color is a color scheme made up of different forms of one color.

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A color that combined with a given color makes white or black.

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A neutral is a color without much intensity or saturation—a color that's lacking in color.

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Warm colors on the other hand, are those hues that give the feeling of warmth, such as red, orange, and yellow.

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Positive space is the idea that any part of a photo that includes the subject, stands out from the rest of the photo.

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Negative space (also called white space) is the area surrounding the subject.

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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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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 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.

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A silhouette is a solid, dark image of a subject against a brighter background.

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In photography, the chiaroscuro lighting technique can be defined simply as high contrast lighting.

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Ambient light is any light a photographer or cinematographer did not bring to the shoot. Also known as available light, it's any light that you haven't set up yourself.

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Diffused light is light that has an even concentration across the spread of its beam.

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illumination from behind.

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a symbol, word, or words legally registered or established by use as representing a company or product.

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the exclusive legal right, given to an originator or an assignee to print, publish, perform, film, or record literary, artistic, or musical material, and to authorize others to do the same.

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based on or influenced by personal feelings, tastes, or opinions.

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(of a person or their judgment) not influenced by personal feelings or opinions in considering and representing facts.

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Relating to moral principles or the branch of knowledge dealing with these.

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The practice of taking someone else's work or ideas and passing them off as one's own.

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Constructive criticism is a type of feedback that offers specific and actionable advice to help employees to improve.

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Cool colors are typified by blue, green, and light purple. They can calm and soothe.

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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.

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In photography, variety would refer to using different colors, shapes, or objects in the image.

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Balance is a composition technique that arranges elements within the frame to achieve equal visual weight across the image.

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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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The gelatin silver process was introduced at the end of the nineteenth century and dominated black-and-white photography in the twentieth century. The paper or film used to make gelatin silver prints and negatives is coated with an emulsion that contains gelatin and silver salts. Gelatin silver prints and negatives are developed out rather than printed out, which means that exposure to light registers a latent image that becomes visible only when developed in a chemical bath.

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The twin-lens reflex is a comparatively bulky dual camera (Figure 3) with a fixed-mirror reflex housing and top screen mounted above a roll-film box camera. Its two lenses focus in unison so that the top screen shows the image sharpness and framing as recorded on the film in the lower section. The viewing image remains visible all the time, but the viewpoint difference (parallax) of the two lenses means that the framing on the top screen is not exactly identical with that on the film.

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(35 millimeter film) The standard photographic film format for analog single lens reflex (SLR) still cameras and motion picture cameras. Dating back to the first quarter of the 20th century, the 35mm format has mostly given way to digital still and video technologies. The 35mm film frame is 36 x 24mm, and high-end digital SLR (DSLR) and video cameras use sensors of equivalent size (see crop factor). See analog film, Advanced Photo System and digital cinema.

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Camera obscura (meaning “dark room” in Latin) is a box-shaped device used as an aid for drawing or entertainment. Also referred to as a pinhole image, it lets light in through a small opening on one side and projects a reversed and inverted image on the other.