The Exposure Triangle
The exposure triangle is a common way of associating the three variables that determine the exposure of a photograph aperture, shutter speed, and ISO. From Exposure Triangle i have learn how to blur the background how to make image still. aperture means 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.
meaning of shutter speedShutter 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, as seen in the above photo of the dolphin. 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. Slow shutter speeds are also used to photography lighting or other objects at night or in dim environments with a tripod.
Meaning of ISO The lower the ISO number, the less sensitive it is to the light, while a higher ISO number increases the sensitivity of your Camera.
meaning of shutter speedShutter 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, as seen in the above photo of the dolphin. 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. Slow shutter speeds are also used to photography lighting or other objects at night or in dim environments with a tripod.
Meaning of ISO The lower the ISO number, the less sensitive it is to the light, while a higher ISO number increases the sensitivity of your Camera.