refers to material used on lights to reduce harsh shadows by softening light. For more information, check out our lesson on Diffusion.

is the size of the opening within your lens that allows light onto the image sensor. Aperture is measured by f-number or f-stops. For more information, check out our lesson on F-stops and Aperture.

is the relationship between the width and the height of your video dimensions expressed as a ratio. The most common aspect ratios for video are 4:3, 16:9 and 1.85:1. Check out the diagram below for an [..]

(also known as data rate) is the amount of data used for each second of video. In the world of video, this is generally measured in kilobits per second (kbps), and can be constant and variable. For mo [..]

describes the character of the blur in an image, often used to specifically refer to points of light rendered as fuzzy circles. For more information, check out our lesson on Bokeh.

are long, highly directional microphones. They are normally attached to boom poles to capture dialogue in a scene. They also can be mounted directly on cameras to capture long distance sound. For more [..]

is supplemental footage that provides supporting details and greater flexibility when editing video. Common examples include the footage used to cut away from an interview or news report to help tell [..]

refers to material used to literally bounce or reflect light onto your subject. Handy for evening out harsh shadows and dispersing light so it doesn't appear to be coming from a single source. Es [..]

is a shot composition where the frame is filled almost entirely with the subject's face. For more information, check out our lesson on Varying Your Shot Composition.

is the method a computer uses to determine the amount of change between frames of a video. For more information, check out our lesson on Video Compression.