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Telephoto Lens
A lens that makes a subject appear larger on film than does a normal lens at the same camera-to-subject distance. A telephoto lens has a longer focal length and narrower field of view than a normal lens.
Through-The-Lens Focusing
Viewing a scene to be photographed through the same lens that admits light to the film. Through-the-lens viewing, as in a single-lens-reflex (SLR) camera, while focusing and composing a picture, eliminates parallax.
Through-The-Lens Metering
Meter built into the camera determines exposure for the scene by reading light that passes through the lens during picture-taking.
Time Exposure
A comparatively long exposure made in seconds or minutes.
Tint
Shades of white in a finished print, controlled by the color of the paper, varying from white to buff.
Tone
The degree of lightness or darkness in any given area of a print; also referred to as value. Cold tones (bluish) and warm tones (reddish) refer to the color of the image in both black-and-white and color photographs.
Toning
Intensifying or changing the tone of a photographic print after processing. Solutions called toners are used to produce various shades of colors.
Transparency
A positive photographic image on film, viewed or projected by transmitted light (light shining through film).
Tripod
A three-legged supporting stand used to hold the camera steady. Especially useful when using slow shutter speeds and/or telephoto lenses.
Tungsten Light
Light from regular room lamps and ceiling fixtures, not fluorescent.
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