Monday, September 20, 2010

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/

Sunday, September 19, 2010

Playing With Long Exposure


Fun to play, try to use the concept of long exposure on camera. Set to 10 or 15S (forgotten) .. camera rocking right and left, up and down, play the zoom back and forth .. like a dangdut singer, and the result as above. Somewhat futuristic ya .. The blue color is the blue screen television. Condition of the room lights turned off, so who ya dominant color is blue. Mayan was the newbie who make more fun / I'm bored.

Source : http://tukangmoto.wordpress.com

Basic Digital Photography Techniques: Shutter Speed

Shutter Speed in the Indonesian language is called Shutter speed or in terms of closing speed photography is a curtain that covers the camera's exposure sensor surface or on the surface of the film or image sensor earlier. photos. If the curtain is open there will be arrests image

Originally shutter is made of sheet metal, but most modern cameras use a cover made from fabric faster shutter speeds. The cover is made of fabric has a strength of about 50.000 to 200.000 times the process of opening and closing (to exposure). Cloth covering worn or damaged can be easily replaced in the center of the camera brand sales services concerned. to reduce the weight of the camera and to obtain

The duration of the curtain is open is determined by the camera's shutter speed setting.

Digital photography allows us to understand the world of photography, photographs resulted in a review can be directly through the LCD window, so we can evaluate the shots, because of technical data relating to catapult who had been seen and recorded, in contrast to conventional photography, where we have to print them first and can see , to review and evaluate the results jeperetan, any technical data it first we must note, that it took a lot of money and time wasted on who can improve our photography skills

Digital photography art can be described as painting with light, in this case the camera and lens that replaces the role of the brush and paint. There are two things that the most important role in the camera and lens, the Shutter Speed and Aperture

Shutter Speed is the length of time required to illuminate the CCD ato CMOS sensors on digital cameras, and film in conventional cameras. On the numbers listed Kemera 250,125,60,30,15 ff. This means that the duration of exposure is 1 / 250 sec, 1 / 125 sec, 1 / 60 seconds, and so on.

The larger numbers mean faster the time who used, this will create the effect of silent (freeze), for example, who we will be photographing a moving object, eg a car, with the effect of silence, we require at least a shutter speed above 1 / 125 sec

Conversely, if we will be photographing objects with moving effects, then the required shutter speed of less than 1 / 125 seconds, preferably done by following the direction of motion of the object, this technique called panning,

Two things also from the above depending on the speed of the moving object, the faster an object moves, it means that the higher the shutter speed required to obtain still or moving effects that we want, should be noted, the lower the shutter speed, will result in the greater also the possibility of camera shaking , who will cause shots to be rocking and not sharp

To be safe, use a shutter speed above 30 or 1 / 30 seconds, if it wants a lower shutter speed, eg 1 / 15 sec, 1 / 8 seconds ato undersell, use a tripod to use a buffer ato

Source : http://citrastudio.com