Optics. A spot, shape, or duplicate image appearing at the focal plane of an optical device, produced by spurious reflections resulting from…

Photography. The injurious effect produced by over-exposing a negative to the action of light, resulting in the reversal of the image; a similar…

Photography. (See quot. 1968). Also, a similar appearance in the object-glass of a telescope.

(See quots.)

a faint, transient, secondary, or spurious image caused by reflection, equipment defect, etc. (cf. sense A. 17).

Painting and Photography. Shininess; a shiny patch.

The condition of being orthochromatic (orthochromatic, adj. 1).

Counterfeit, simulated, sham. an extra image made on the plate by a defective lens at the same time as the image proper.

= sense 3).

A more or less circular bright or dark area formed in various photographic processes (see quots.).

The sharpness of a photographic or printed image; a numerical measure of this.