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This means a full-frame sensor has more than 2.5 times the surface area of an APS-C sensor.

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The more popular APS-C sensor size found in most DSLRs and mirrorless cameras measures 22 x 15mm.

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is the ratio of the dimensions of a camera's imaging area compared to a reference format; most often, this term is applied to digital cameras, relative to 35 mm film format as a reference.

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1. a lens of fixed focal length.

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1. a lens allowing a camera to change smoothly from a long shot to a close-up or vice versa by varying the focal length.

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You create and manipulate your documents and files using various elements, such as panels, bars, and windows. Any arrangement of these elements is called a workspace.

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A toolbar is a set of icons or buttons that are part of a software program's interface or an open window.

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A menu bar is a user interface element that contains selectable commands and options for a specific program

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are groups of tools used to edit and manipulate your image.

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color saturation is used to describe the intensity of color in the image. A saturated image has overly bright colors.

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color balance is the global adjustment of the intensities of the colors (typically red, green, and blue primary colors).

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The move tool allows you to move a selection or entire layer by dragging it with your mouse or using your keyboard arrows keys.

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A digital zoom is what allows the camera to have a 300x zoom capability and works by cropping a portion of the image and then enlarging that section.

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The Hand tool allows you to move your image around its window by dragging.

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Cropping is the process of removing portions of a photo to create focus or strengthen the composition.

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is simply a fancy way of saying what the length of one side of a pixel is in relation to the length of the other.

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The paint bucket toolfills an area of an image based on color similarity.

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Cropping is the process of removing portions of a photo to create focus or strengthen the composition.

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the brush tool is an element of the painting tool that allows you to select a brush shape (square, circle, oval and so on) and also the the thickness in pixels you want to paint on your image with.

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he spot healing brush is the default healing tool in Photoshop and can be used to clone areas from an image and blend the pixels from the sampled area seamlessly with the target area.

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The Healing Brush tool allows you to fix image imperfections such as scratches, blemishes, etc

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The Patch Tool is part of the healing brush set of tools.

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Photoshop Clone Stamp Tool. Photoshop's clone stamp tool allows you to duplicate part of an image.

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The move tool allows you to move a selection or entire layer by dragging it with your mouse or using your keyboard arrows keys.

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The Dodge tool and the Burn tool lighten or darken areas of the image.

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The Dodge tool and the Burn tool lighten or darken areas of the image.

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The Sponge Tool saturates / desaturates image areas: In the Toolbox, select the Sponge Tool.

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The Blur Tool is used to paint a blur effect. Each stroke made using the Blur Toolwill lower the contrast between affected pixels, making them appear blurred.

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Sharpening enhances the definition of edges in an image. Whether your images come from a digital camera or a scanner, most images can benefit from sharpening.

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1. a lens suitable for taking photographs unusually close to the subject.

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is an ultra wide-angle lens that produces strong visual distortion intended to create a wide panoramic or hemispherical image.

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High-dynamic-range imaging is a high dynamic range technique used in imaging and photography to reproduce a greater dynamic range of luminosity than is possible with standard digital imaging or photographic techniques.

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which in simple terms means darkening of image corners when compared to the center.

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The type tool allows direct on-image text editing. The only difference between the horizontal and vertical type tools is that the horizontal type tool adds text horizontally and the vertical type tool adds text vertically.

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In photography, painting, and other visual arts, middle gray or middle grey is a tone that is perceptually about halfway between black and white on a lightness scale; in photography, and printing, it is typically defined as 18% reflectance in visible light. ... Therefore, the camera light meter assumes an 18% gray level.

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In photography, the metering mode refers to the way in which a camera determines exposure.

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Partial metering is one of four modes found mostly on Canon cameras to help measure a subject's brightness.

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Today, every DSLR has an integrated light meter that automatically measures the reflected light and determines the optimal exposure.

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Cameras generally allow the user to select between spot, center-weighted average, or multi-zone metering modes.