Lens aperture

Lens aperture is a component of a functioning set the intensity of light entering the camera.

Lens diaphragm is usually a hole like a circle or a particular facet. It was formed from a number of sheet metal (usually 5, 7 or 8 pieces) that can be adjusted to change the size of the hole opening (shutter / Shuter) lens where the light will pass by or in Aperture digital photographic lens aperture size is a function of light to enter and continue film or sensor. size of regulated through the diaphragm. In general the camera contained 2.8; 4; 5.6 ff. angka2 is known as the f-number, so called aperture (aperture) f / 2.8, f / 4, f / 5.6 ff. The bigger the aperture the smaller the f-numbernya and the lesser diameter of opening, so it is smaller in diameter than f/16 f / 5.6

It works like a pupil aperture on the human eye, the more light coming in, the smaller the diameter of the pupil, and vice versa. Aperture very much associated with a sharp space or depth of field, the greater the f-number, eg f/22, sharpness will increasingly wide range. This means that objects behind and in front of the main focus has good sharpness. otherwise we will get blur effect / blur to objekdi front and behind the main focus when using a small f-number, eg f / 2.8

Shutter speed and aperture should be synergized to get proper exposure. ISO is also an important role, the higher the ISO is used, the sensitivity to light any bigger, so that at any dim lighting, shutter speed and aperture can still be used optimally. But keep in mind, the higher the ISO is used, the higher the level of noise or grain produced

(ISO / ASA speed film is is a term used in photography to measure the level kesensitivitas or sensitivity to light photo film. The film with low sensitivity (a lower ISO number) requires attention (UK: exposure) is longer so-called slow film, while films with high sensitivity (a high ISO number) requires a brief exposure.)

To determine whether the exposure was correct or not, in conventional digital cameras available ato metering facilities. So that the occurrence of over-exposure (excess lighting), or under exposure (lack of lighting) can be minimized.

Once the basic technique can be mastered, the next is the flying hours required, because art is identical with the moment of photography, fine day and the moment was not easily repeated, skill determines the composition and angle of image capture can be developed as flying hours, then multiply references, books, internet, as well as other sumber2. How good and sophisticated a camera, just a tool, clincher is that those who were behind the camera.

Source : http://citrastudio.com/