Aperture, Shutter Speed & ISO
Aperture “the opening in the lens”
The definition of aperture, according to google, is “an opening, hole, or gap.” In photography, aperture is one of the main elements of the “exposure triangle.” Aperture is the hole that opens when the shutter is released. You can adjust this aperture to obtain different sizes of the hole, which is measured in f-stops. The larger the hole, the more light gets in, the smaller the hole, less light is able to get in.
Shutter Speed “the amount of time that the shutter is open”
The definition of shutter speed, according to google, is “the time for which a shutter is open at a given setting.” Shutter speed is freezing a moment in time. The speed setting that is chosen depends on the speed of the movement and blurriness in the photograph. Shutter speed is measure in seconds, for example 1/100th is faster than 1/50th. The slower the shutter speed, the more blurred and motionless photograph you will get. The faster the shutter speed, you can capture a movement clear and precise.
ISO “International Organization of Standardization”
The term “ISO” means that it measures the sensitivity of the image sensor. ISO is measured in hundreds. The higher the number, the more sensitive the camera is to light. For example, if you are shooting at nighttime, you might want to turn up your ISO, that way you can see things around you and get what you want to capture. 100 ISO is typically the standard, but most cameras range from 100 to 400 ISO.
Depth of Field “DoF”
Depth of Field is the zone of acceptable sharpness within a photograph that will appear in focus. This zone varies from image to image depending on what is in focus. To change the depth of field, you need to adjust aperture, the distance and the focal length of the lens. To increase the depth of field, the aperture has to be a higher f-stop, be far away from the object or subject you are shooting and the focal length needs to be shorter. To decrease the depth of the field, do the opposite.
Link: https://digital-photography-school.com/understanding-depth-field-beginners/
Dynamic Range
In order to fix a photograph that is too light or one that is too dim, you will want to know “dynamic range.” Dynamic range has two applications. One relates to the scene that you are shooting and the other is technical. The technical applications helps with the camera’ image sensor. Dynamic range is the total amount of light being captured; it deals with contrast. The higher range, the lower contrast; the lower range, the higher contrast.
Link: https://digital-photography-school.com/understanding-dynamic-range-photography/
