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Aperture priority, often abbreviated A or Av (foraperture value) on a camera mode dial, is a setting on some cameras that allows the user to set a specificaperture value (f-number) while the camera selects ashutter speed to match it that will result in proper exposure based on the lighting conditions as measured by ...

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The measurement of the aperture setting in a camera lens. The f-stop setting determines how much light is allowed to enter the lens and pass through to the film (

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The aperture stop of a photographic lens can be adjusted to control the amount of light reaching the film or image sensor. In combination with variation of shutter speed, the aperture size will regulate the film's or image sensor's degree of exposure to light.

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lso sometimes pronounced as /ˈboʊkə/ BOH-kə, Japanese: [boke]) is the aesthetic quality of the blur produced in the out-of-focus parts of an image produced by a lens. Bokeh has been defined as "the way the lens renders out-of-focus points of light".

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The focal length of the lens is the distance between the lens and the image sensor when the subject is in focus, usually stated in millimeters

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The distance between the nearest and the furthest objects that give an image judged to be in focus in a camera.

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A digital single-lens reflex camera (also called a digital SLR or DSLR) is a digital camera that combines the optics and the mechanisms of a single-lens reflex camera with a digital imaging sensor, as opposed to photographic film.

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Metadata is a set of data that describes and gives information about other data. Photo metadata allows information to be transported with an image file, in a way that can be understood by other software, hardware, and end users, regardless of the format.

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Vibration Reduction (VR) is an image stabilization technology that minimizes blur caused by camera shake. ... Another advantage of lens-based VR is that a separate algorithm confirms the stabilization effect when you press the shutter release button halfway, giving you the freedom to compose your image more easily.

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Thumbnail is a term used by graphic designers and photographers for a small image representation of a larger image, usually intended to make it easier and faster to look at or manage a group of larger images.

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Manual mode is one of the main settings on your camera, and it lets you manually control shutter speed, aperture, and ISO.

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Program mode has the camera calculate both shutter speed and aperture (given a manually or automatically selected ISO). ... S or Tv: Shutter priority or Time value enables manual control of the shutter speed, and aperture is calculated by the camera for proper exposure (given an ISO sensitivity).

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In guide mode the camera guides you to what type of photo you want, so this is for beginners.

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Shutter priority 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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Automatic mode is a mode in a digital camera where the camera's software fully controls all aspects of the photograph, from the shutter speed to the aperture setting to the focus.

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Something that emits light is known as a light source. Light sources can be divided into natural light sources, such as the sun, stars, lightning, and bioluminescence, and artificial light sources, including incandescent lighting, fluorescent lighting, and sodium lamps.

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Fluorescence photography, process that records the glow or visible light given off by certain substances when they are irradiated by ultraviolet rays. ... Fluorescence photography can identify dyes, stains, and markings, specific chemical substances, and fluorescent components in microscope specimens.

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Direct Sunlight – the sun shines directly on the plant with no other plants, trees, or structures interfering with the sunlight. Filtered Sunlight – the sun shines on the plant through the branches or leaves of another plant or tree, or through a structure.

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A flash is a device used in photography producing a flash of artificial light (typically 1/1000 to 1/200 of a second) at a color temperature of about 5500 K to help illuminate a scene. A major purpose of a flash is to illuminate a dark scene.

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(of the sky or weather) covered with or characterized by clouds; overcast.

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slight darkness or shelter from the direct light of the sun made by something blocking it a plant that needs a lot of shade in the shade (of something) She was sitting in the shade of a large oak tree.

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Auto focus points are what the camera uses to focus on a subject. You'll probably first notice them when you press the shutter halfway. Many cameras will emit a "beep," and some of the AF points will light up (often in a red or green color) in the viewfinder or on the display screen

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In photography, bracketing is the general technique of taking several shots of the same subject using different camera settings. ... Auto-bracketing is automatic bracketing by using a setting on the camera to take several bracketed shots (in contrast to the photographer altering the settings by hand between each shot).

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An electronic viewfinder (EVF) is a camera viewfinder where the image captured by the lens is projected electronically onto a miniature display. The image on this display is used to assist in aiming the camera at the scene to be photographed

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A light meter is a device used to measure the amount of light. ... Typically a light meter will include either digital or analog electronic circuit, which allows the photographer to determine which shutter speed and f-number should be selected for an optimum exposure, given a certain lighting situation and film speed.

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A point-and-shoot camera, also known as compact camera, is a still camera designed primarily for simple operation. Most use focus free lenses or auto-focus for focusing, automatic systems for setting the exposure options, and have flash units built in. ... None have lens threads.

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he time for which a shutter is open at a given setting.

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Bulb mode is usually used in conjunction with a cable release.

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

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A three-legged stand for supporting a camera or other apparatus.

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Light painting, or light drawing, is a photographic technique in which exposures are made by moving a hand-held light source while taking a long exposure photograph, either to illuminate a subject or to shine a point of light directly at the camera, or by moving the camera itself during exposure.

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The exposure triangle is a common way of associating the three variables that determine the exposure of a photograph: aperture, shutter speed, and ISO. One must balance all three of these to achieve a desired result, an adjustment of one requiring adjustments of at least one of the others.

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Exposure compensation is the control by which you temporarily adjust your camera's definition of what is "properly exposed". Put simpler, it's a way to force the camera to make your photos darker or brighter to the degree that you tell it.

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In burst mode, several photographs are captured in quick succession by either pressing the shutter button or holding it down. This is used mainly when the subject is in successive motion, such as sports photography.

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Denoting the photographic technique of taking a sequence of frames at set intervals to record changes that take place slowly over time. When the frames are shown at normal speed, or in quick succession, the action seems much faster.

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Post-processing may refer to: Image editing in photography. Audio editing software in audio. Differential GPS post-processing, an enhancement to GPS systems that improves accuracy. Video post-processing, methods used in video processing and 3D graphics

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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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Camera resolution is measured in megapixels (meaning millions of pixels); both image ﬁle resolution and monitor resolution are measured in either pixels per inch (ppi) or pixel dimensions (such as 1024 by 768 pixels); and printer resolution is measured in dots per inch (dpi) (see below).

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A wide-angle lens with a field of vision covering up to 180°, the scale being reduced toward the edges.

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Unintentional slight movement of a camera during photography or filming, liable to cause blurring of the image.

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panning. 1. to photograph or televise while rotating a camera on its vertical or horizontal axis in order to keep a moving person or object in view or allow the film to record a panorama : to pan from one end of the playing field to the other during the opening of the football game.

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Grayscale mode uses different shades of gray in an image. In 8‑bit images, there can be up to 256 shades of gray. Every pixel of a grayscale image has a brightness value ranging from 0 (black) to 255 (white).

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A dark reddish-brown pigment obtained from the inky secretion of the cuttlefish.

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That range of tones which lie between highlights with detail and shadows with detail

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A highlight is a bright spot in a photograph. Normally it is assumed to be one of the brightest points in the image. Highlights are normally created by a bright or intense illumination or by various forms of diffusion or reflection. Highlights are created by any bright light source.

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A shadow is a dark area where light from a light source is blocked by an opaque object.