Iris
noun
Subject Field: Cinematography, Photography

Transitional effect occurring when an existing image moves into a circle that rapidly decreases in size until it disappears. Beaver			See Technique Matte shot See Instrument Diaphragm - Hyperonyms - In-camera Optical printing Bibliography Index Home Conceptual tree
Context: When purchasing add-on lenses, it pays to consider quality. Inexpensive lenses used in low light will show poor resolution. The camcorder's iris will open wide, resulting in poor sharpness at the edge of the image. Stinson Attestation: 2 Iride Reliability: 3