Saturday, July 3, 2010

Tutorial I : Exposure,Shutter and Aperture

What is shutter speed and aperture???

Shutter speed : In photography, shutter speed is a common term used to discuss exposure time, the effective length of time a camera's shutter is open. The totalexposure is proportional to this exposure time, or duration of light reaching the film or image sensor.
Aperture : an aperture is a hole or an opening through which light travels

Shutter and aperture are very important thing to learn when using DSLR. This is because without a right techniques you will get an over expose or maybe an under expose. This will ruin all the composition in the photos. So, to get a very great picture you must know the right shutter speed for a right aperture and vice versa. The aperture is like a pupil. You can control the aperture by setting the "Aperture Opening", also known as an F-Stop. For small F number is mean a large opening so this will cause more light detected by the sensor.

While for shutter, it same as aperture which you can control it by setting the shutter speed. But for shutter speed, the small number like 1 it will give a longer exposure and this will give much more light to the film than a 1/1000 of a second exposure. So even though the number may look bigger, don't be deceived!
Exposure is about different combinations of shutter and f-stop settings. These combinations can drastically affect the finished picture. For example, the following three pictures have been given an equal amount of light, but the f-stop and shutter combinations make each one unique.

No comments:


About Me

My photo
My name is Afiq. Just finish my study at UTM Skudai.