The top 5 requirements of Photography
- Light - You can't have a picture without light in some form or other
- Medium - The material that light or image is recorded onto
- Aperture -The hole that the light has to pass through
- Time - The amount of time the light is allowed to pass though the hole to be recorded
- Composition- The subject in the picture and how it is composed
is the most important part of every photo we take, it's what creates everything that we see and affects how it appears. Understanding a little bit about it can really help to improve the quality of our photos and videos.
Medium
The material that is used to record the image , usually film, a digital sensor or recording material
Aperture
Simply put, aperture is a hole within a lens, through which light travels into the camera body. It is easier to understand the concept if you just think about our eyes. Every camera that we know of today is designed like human eyes. The cornea in our eyes is like the front element of a lens – it gathers all external light, then bends it and passes it to the iris. Depending on the amount of light, the iris can either expand or shrink, controlling the size of the pupil, which is a hole that lets the light pass further into the eye. The pupil is essentially what we refer to as aperture in photography. The amount of light that enters the retina (which works just like the camera sensor), is limited to the size of the pupil – the larger the pupil, the more light enters the retina.
Time
Shutter speed, also known as “exposure time”, stands for the length of time a camera shutter is open to expose light into the camera sensor. If the shutter speed is fast, it can help to freeze action completely. If the shutter speed is slow, it can create an effect called “motion blur”, where moving objects appear blurred along the direction of the motion. This effect is used quite a bit in advertisements of cars and motorbikes, where a sense of speed and motion is communicated to the viewer by intentionally blurring the moving wheels.
Composition can be hard to learn, and hard to teach. You know it when you see it; it strikes an emotion, it tells the story, it lends fresh perspective. Good composition can turn an ordinary scene into an image that grabs attention and engages the viewer.
The trouble with composition is that there is no mathematical formula, or step-by-step rules to guide you; there is no button on the camera for "automatic composition." It's one of the most important elements in photography, yet, despite leaps in digital technology, it's the one aspect we must still perform manually. Composition is one of the most important elements in photography -- with your camera in auto mode, and a good eye for composition, you can begin to take photographs that will impress even the toughest critics!
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