Entertainment / Photography Glossary

Magnification: Is the size of the image relative to the size of the subject used to produce it. It is an expression of the ratio of the subject-lens distance to the image-lens distance. When object distanc . . . View Full Definition

Mask: Is an opaque material used to cover the edges of the printing paper, and thus produce borders when the paper is exposed to light.

Masking: Is a system of controlling negative density ranges or color saturation through the use of unsharp masks.

Masking Frame: Is an adjustable frame used to hold printing paper in position under the enlarger, also referred to as an enlarging easel.

Mastic Varnish: Is varnish used for negatives.

Mat: Is an alternative term used for matte. Also describes the cardboard surround in a picture frame.

Matrix: Is a relief image, usually made from gelatin and used for processes such as dye transfer printing.

Matte: Is a term used to describe a non reflective, non-textured surface.

Matte Box: Is a mask used to make images suitable for wide-screen projection.

Matte Field: Is a granular textured surface that disperses light in order to form a clear image. Used in the viewfinder optical system.

Meniscus Lens: Is a simple lens consisting of a single piece off glass, thicker at the center than at the edges. It has one concave and one convex face.

Mercuric Chloride: Is a chemical used in certain types of intensifiers.

Mercury Vapor Lamp: Is an artificial light source produced by passing current through mercury vapor in a tube.

Metal Print: Is a photographic print made on a sensitized metal surface

Methyl Alcohol: Is a volatile, poisonous spirit commonly known as wood alcohol. Used as a substitute for pure alcohol in some photographic processes.

Metol: Is a reducing agent which is soft working, especially in the presence of a weak alkali.

Metolquinone: Is a combination of metol and hydroquinone, used as a developing agent (mq developer).

Micro Lens: Is a lens for microscopic photography. Not to be confused with a macro lens.

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