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Electronic Timer-Analyzer. A photo-lab timer, photo interval timer, or darkroom timer is a timer used in photography for timing the process of projecting negatives to photosensitive paper with an enlarger, making photographic prints of them at any scale.
Darkroom manipulation is a traditional method of manipulating photographs without the use of computers. Some of the common techniques for darkroom manipulation are dodging, burning , and masking , which though similar conceptually to digital manipulations, involve physical rather than virtual techniques.
All enlargers consist of a light source, normally an incandescent light bulb shining though a condenser or translucent screen to provide even illumination, a holder for the negative or transparency, and a specialized lens for projection, though some, such as the Rapid Rectilinear or Aplanat [citation needed] could be used in both camera and enlarger.
AP Photo Industries (Spain) Darkroom equipment, film cartridges and cartridge loading equipment, disposable cameras [13] Beseler (USA) Photographic enlargers; De Vere (UK) Digital enlargers. Previous manufacturer of quality analog photographic enlargers. Dunco, Photographic enlargers; Jobo (US) Film/Photo processors; Fujifilm (Japan) Frontier ...
Burning: a darkroom technique. To burn-in a print, the print is first given normal exposure. Next, extra exposure is given to the area or areas that need to be darkened. A card or other opaque object is held between the enlarger lens and the photographic paper in such a way as to allow light to fall only on the portion of the scene to be darkened.
A darkroom is used to process photographic film, make prints and carry out other associated tasks. It is a room that can be made completely dark to allow the processing of light -sensitive photographic materials, including film and photographic paper .
The customary approach to making a photogram is to use a darkroom and enlarger and to proceed as one would in making a conventional print, but instead of using a negative, to arrange objects on top of a piece of photographic paper for exposure under the enlarger lamp which can be controlled with the timer switch and aperture controls.
Working with an Omega D2 enlarger, c. 1950. The first Omega-branded enlarger sold by Simmon Brothers was the Omega B, introduced in 1937. [14] Eventually, a complete line of enlargers and darkroom instruments were produced. The letter designation in the enlarger model number provided the maximum film size that was accepted: [15] A = 35 mm film
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