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Glossary Of Art Terms [3]

O Opacity Opacity refers to the degree to which a material or substance blocks the transmission of light or allows objects behind it to be obscured or concealed. In the context of printing, opacity is an important property of paper, ink, and other printing materials that affects the visibility and legibility of printed text, images, and graphics. Opacity is typically expressed as a percentage, with higher opacity indicating greater light-blocking ability and less see-through or show-through of underlying layers. Opacity is influenced by factors such as paper thickness, weight, and composition, as well as ink coverage, color density, and printing process. High-opacity papers are preferred for double-sided printing, where text and images must remain legible without interference from content printed on the reverse side.
Open Edition Print Any series of fine art print for which a limited number of copies was not specified; thousands of copies may be produced. This diminishes the worth of the piece, but also the original cost.
Open edition prints An open edition print has no limit to the number of copies made. While a limited edition print has a set number - 10, 50, or 1000, for instance, after which time no more copies will be made - open edition implies the artist can continue making prints indefinitely. As a result, open edition prints are generally cheaper than limited editions, and will not amass the same value over time.