Graininess
The sand-like or granular appearance of a negative, print, or slide. Graininess becomes more pronounced with faster film and the degree of enlargement.



Reciprocity
Most films are designed to be exposed within a certain range of exposure times-usually between 1/15 second to 1/1000 second. When exposure times fall outside of this range-becoming either significantly longer or shorter-a film's characteristics may change. Loss of effective film speed, contrast changes, and (with color films) color shifts are the three common results. These changes are called reciprocity effect.


Advantix
The new Kodak brand that identifies the company's Advanced Photo System offerings.



Clearing Agent
A chemical that neutralizes hypo in film or paper, reducing wash time and helping to provide a more stable image.



Video Noise
More commonly called "luminence signal-to-noise ratio." This is a measure of how pure the video signal is (the monochrome or black-and-white portion of the picture). Tape with good luminence signal-to-noise ratios has a sharper, clearer image. This property has even greater importance on multiple generation copies.




Lens
One or more pieces of optical glass or similar material designed to collect and focus rays of light to form a sharp image on the film, paper, or projection screen.