photographic equipment LO2

            Research into photographic equipment

Photographic equipment: Processing

Tanks:

A developing tank is a light-tight container used for developing film. A developing tank allows photographic film to be developed in a daylight environment. This is useful because most film is panchromatic and therefore cannot be exposed to any light during processing. Depending upon the size and type, a developing tank can hold one too many roll or sheet films.

Spools:

120 is a popular film format for still photography introduced by Kodak for their Brownie No. 2 in 1901. It was originally intended for amateur photography but was later superseded in this role by 135 film. 120 film and its close relative, 220 film, survive to this day as the only medium format films that are readily available to both professionals and amateur enthusiasts.

Thermometer:

These are designed

Printing:

Enlarger:

An enlarger is a specialized transparency projector used to produce photographic prints from film or glass negatives using the gelatine silver process, or from transparencies.

Frames:

Framing is the presentation of visual elements in an image, especially the placement of the subject in relation to other objects. Framing can make an image more aesthetically pleasing and keep the viewer's focus on the framed object. It can also be used to direct attention back into the scene. It can add depth to an image, and can add interest to the picture when the frame is thematically related to the object being framed.

Contact printers:

A contact print is a photographic image produced from film; sometimes from a film negative, and sometimes from a film positive. The defining characteristic of a contact print is that the photographic result is made by exposing through the film negative or positive, onto a light sensitive material that is pressed tightly to the film.

In the dark, or under a safe light, an exposed and developed piece of photographic film is placed emulsion side down, against a piece of photographic. Light is briefly shone through the negative. Then, the paper is developed into a contact print. The image in the emulsion has been pressed as close as possible to the photosensitive paper. An exposure box device called a contact printer or a printing frame is sometimes used within a light-controlled space called a darkroom. Enlargers can also be used for this process.

Techniques:

Time control:

Time control is a technique whereby the frequency at which film frames are captured (the frame rate) is much lower than that used to view the sequence. When played at normal speed, time appears to be moving faster and thus lapsing. For example, an image of a scene may be captured once every second, then played back at 30 frames per second.

Temperature control:

The colour temperature of a light source is the temperature of an ideal black-body radiator that radiates light of comparable hue to that of the light source. Colour temperature is a characteristic of visible light that has important applications in lighting, photography, publishing, manufacturing, and other fields.

Push processing:

Push processing in photography refers to a film developing technique that increases the effective sensitivity of the film being processed. Push processing involves developing the film for more time, possibly in combination with a higher temperature, than the manufacturer's recommendations. This technique results in effective overdevelopment of the film, compensating for underexposure in the camera.