Exposure determines how light or dark an image will appear. it is also the amount of light per unit area, reaching a photographic film or electronic image sensor, as determined by shutter speed, lens aperture and scene luminance.
The ISO determines how sensitive the camera is to incoming light. It is similar to shutter speed it also it also correlates 1:1 because of the exposure increases and decreases.
The aperture is a small set of blades in the lens that controls how much light will enter the camera. For example if you shoot with the aperture open more light is allowed into the camera.
The shutter speed is a curtain in the camera that quickly rolls over the image sensor. It allows light to shine into the image sensor for a fraction of a second.
The exposure triangle
The exposure triangle is a way of associating the three variables that determine the exposure of a photograph: aperture shutter speed and ISO.
In photography composition is the arrangement of visual elements as a distinct the subject.
Rule of thirds
The rule of thirds involves mentally dividing up your image using two horizontal lines and two vertical lines.
The rule of thirds doesn't apply in every situation and sometimes breaking it results in more eye-catching photos.
Symmetry is when an object has reflection. symmetry splits the image into two images. symmetry splits an image in half, this is because both sides of the image are the same.
Framing is a technique of drawing attention to the main part of the image by blocking the other parts of the photo out.
Leading lines are one of the most effective tools for photographers. They are used to viewers to a specific part of the frame.