Photography Tutorial
Mar 2nd, 2011 | By Indra Dian Supitra | Category: Photography TipsDigital photography tutorial – Understanding exposure
photography tutorial for beginners
Exposure is the amount of light captured by the sensor or photography film in your camera during a single picture. Camera exposure basically determines the extent of darkness or lightness of an image when it is captured.
The extent of darkness or lightness can be controlled by the right setting of 3 elements, also known as the exposure triangle. These 3 elements are the shutter speed, ISO speed and aperture.
Once you master the camera exposure, you are sure to click the perfect picture. This photography tutorial is going to explain how you can do that.
In the beginning of this photography tutorial, I will explain about the 3 elements mentioned above.
- ISO – the sensitivity of the sensor when collecting light.
- Aperture – the size of the lens opening that lets light into the camera.
- Shutter speed – the amount of time the sensor is exposed to light
ISO
The common range of ISO speed is 100 to 800. Use a fast 400-800 ISO film if you were shooting in the room with little light or dark ambience. Use a slower 100 ISO film in a bright room. However, 100-200 ISO film are the most commonly used. The higher ISO speed, the faster the camera collects light and the lower ISO speed, the slower the camera collects light.
Shutter Speed
The camera opens the shutter and then closes it again when you press the shutter release button which This mechanism controls the amount of time that light is collected. Shutter speeds are measured in seconds and more commonly fractions of a second (1/1000 of a second is very fast and 8′ seconds is extremely slow). The longer you let the sensor open, more light coming into the sensor.
Aperture
Aperture
The aperture is measured by f-stops and started at the smallest number, often f2 or f2.8, we can say that each time we change the setting it halves the size of the aperture, ending up at f11 or even f16 at which point only a tiny pinprick of light will enter the camera lens. The smaller the f-stop, the larger the aperture you get.
This is a photography tutorial for beginners. It requires a lot of practice and many photographers even go through stages of trials and experiments.
Here’s the article about Photography Courses to improve your skills.