Photo File Index Print: Makes ordering reprints and enlargements easy. A small print shows a positive, 'thumbnail' version of every picture on an aps roll. Each thumbnail picture is numbered on the index print to match the frames inside the cassette.

 

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Photo File Index Print: Makes ordering reprints and enlargements easy. A small print shows a positive, 'thumbnail' version of every picture on an aps roll. Each thumbnail picture is numbered on the index print to m . . . View Full Definition

Photomicrography: System of producing larger than life photographs by attaching a camera to a microscope.

Photolithography: Lithographic printing process using an image formed by photographic means.

Photometer: Any of a number of atmospheric phenomena which appear as luminous patterns in the sky. They do not directly cause adverse weather. They include halos, coronas. rainbows, and fogbows.

Photon: A discrete packet of energy associated with electromagnetic radiation. Each photon carries energy E proportional to the frequency nu of the radiation: E = hnu, where h is Planck's constant.

Photorespiration: Enhanced respiration of plants in the light relative to dark respiration

Photoperiodism: The ability of certain plants to sense the relative amounts of light and dark in a 24-hour period; controls the onset of fiowering in many plants.

Photolinen: Laminate of linen and paper coated with black and white photographic emulsion. It is used for photographic wall coverings.

Photolamp: Tungsten filament photographic lamp with a large diffused bulb, giving light of 3200 k (kelvin).

Photogenic Drawing: Original name given by william fox talbot to his earliest method of recording camera images.