The electrical performance of the tape samples is measured and compared to the VHS-standard reference tape (the JVC VRT-2). The published numbers represent how much better (+) or worse (-) then the industry standard tape each tape sample performed (the JVC VRT-2 scores 0.0 for every parameter).
Micro-thin layers of gelatin on film in which light-sensitive
ingredients are suspended; triggered by light to create a chemical reaction
resulting in a photographic image.
The side of the film coated with emulsion. In contact printing and enlarging, the emulsion side of the film-dull side-should face the emulsion side of the photo paper-shiny side.
An Advanced Photo System feature available in some system cameras that enables users to encode detailed information at the time of picture-taking, such as the date and time of exposure, camera settings, roll title or other custom information for subsequent printing onto the back of their photographs. See also
Back-printing.
A device consisting of a light source, a negative holder, and a lens, and means of adjusting these to project an enlarged image from a negative onto a sheet of photographic paper.
Available light. Strictly speaking, existing light covers all natural lighting from moonlight to sunshine. For photographic purposes, existing light is the light that is already on the scene or project and includes room lamps, fluorescent lamps, spotlights, neon signs, candles, daylight through windows, outdoor scenes at twilight or in moonlight, and scenes artificially illuminated after dark.
Photographer: Herb Jones
Film: KODAK EKTACHROME
Film Size: 35
The quantity of light allowed to act on a photographic material; a product of the intensity (controlled by the lens opening) and the duration (controlled by the shutter speed or enlarging time) of light striking the film or paper.
An instrument with a light-sensitive cell that measures the light reflected from or falling on a subject, used as an aid for selecting the exposure setting. The same as a light meter.
A truly high grade tape will demonstrate its differences mostly in the quality of the image recorded. Extra high grade tape coatings are generally superior in noise immunity and lower in dropouts. This means that you get a better recording, and you'll get a better second and third generation copy. Several manufacturers have indicated on their packaging that they have done things to also provide greater longevity, but this is a claim that would be difficult to prove or disprove. For especially valuable recordings, use a high grade tape; but remember that there is no standardization and no requirements that prevent anyone from naming a product "extra high grade." Buy a tape with a brand you trust.
