Saturday, October 8, 2011

basic techniques of photography


Basic techniques of shooting is a matter that must be mastered in order to produce good photos. Criteria for a good photo is actually different for each person, but there is a commonality of opinion that can be used as a reference. A good photograph has the sharpness of the image (focus) and lighting (exposure) is appropriate.

A. FOCUS
Focusing is to regulate the activities of the object image sharpness, is done by turning the focus ring on the lens so that objects seen in the viewfinder which was originally less clear it becomes clear (in focus). Photos said to be the focus when the object is sharp / clear and has lines that firm
(not blurred). In the focus ring, there are numbers that indicate the distance (in meters or feet) object to the lens.

B. Exposure
The most important thing that must be considered in taking the picture is the lighting element. Lighting is the process of getting on camera dicahayainya film. In this case, the light received by the object should be enough so that it can be captured on film. The process of lighting (exposure) involving some combination of things, the size of aperture, shutter speed and film sensitivity (ISO). These three things determine the success of photographers in getting the film tercahayai normal, ie the incoming light onto the film in accordance with the required objects, no excess light (over exposed) or lack of light (under exposed).

-  Aperture (apperture)
The diaphragm serves as a window on the lens which controls more or less light passes through the lens. The size of the aperture diaphragm is denoted by f / number. These numbers are printed on the lens: 1.4; 2; 2.8, 4; 5.6; 8; 11; 16; 22; ff. Writing the diaphragm is f / 1.4 or f/22. These figures show the size of the aperture diaphragm in the lens. Aperture diaphragm is used to determine the intensity of incoming light.

The relationship between numbers with the diaphragm aperture is inversely proportional.
"The larger the f / number, the smaller the aperture, so that light entering the less. Conversely, the smaller the f / number the more wide-aperture diaphragm so that light entering the lot."

- Shutter speed (shutter speed)
Shutter speed is fast or slow shutter works opened and closed again. Long shutter speed to control the light on the film. How it works like a window shutter. Rana was in front of the field of film and is always closed when the shutter release is pressed, to protect the film from the light field. When the shutter release is pressed, the shutter opens and closes aka back so that light can enter and illuminate the film.
The size of the shutter speed is calculated in units per second, namely: 1; 2; 4; 8; 15; 30; 60; 125; 250; 500; 1000; 2000; and B. . Numbers 1 means the shutter open with a speed of 1 / 1 sec. Numbers 2000 means the shutter open with a speed of 1 / 2000 second, and so on. B (Bulb) means speed without limit of time (shutter open as long as the shutter release is pressed)

The relationship between numbers by opening the shutter speed is directly proportional cover. "The bigger the number means the faster the shutter opens and closes, the less light to enter. The lower it is, it means that the slower the shutter opens and closes, the more light in."

- Film sensitivity (ISO)
The smaller the unit of film (the lower the ISO), the film is less sensitive to light so more light is needed to illuminate the film, otherwise the higher the ISO the more light-sensitive film so that the less light needed to illuminate the film. For example, ASA 100 requires more light than ASA 400.