Photography Terms

Aperture is the unit of measurement that defines the size of the opening in the lens that can be adjusted to control the amount of… Read More »Aperture

Aperture Priority is a setting that allows the user to select a static aperture and the camera automatically selects the shutter speed to achieve the… Read More »Aperture Priority

In photography, bokeh, is the aesthetic quality of the blur produced in the out-of-focus parts of an image produced by a lens.

The camera normally determines the optimal exposure. There are times where it is advantageous to capture images that are slightly under and over exposed. This… Read More »Bracketing

Also known as “color fringing,” this distortion appears when the camera lens fails to focus on all the colors where two points of high contrast… Read More »Chromatic Aberration

Depth of field refers to the part of the image, from foreground to background, that is in focus.

Exposure compensation is a technique for adjusting the exposure indicated by a photographic exposure meter.

The exposure value (EV) is a number that represents a combination of a camera’s shutter speed and aperture, such that all combinations that yield the… Read More »Exposure Value

A diaphragm inside the camera lens, known as the aperture, can be opened or nearly closed, to regulate the amount of light that falls on… Read More »F-Stop

There are five primary file types in digital photography. The most common file type is JPEG.

Film speed is the measure of a photographic film’s sensitivity to light.

Focal length is an optical measurement that determines how much of what you see in front of you is captured by your camera’s lens.

Focus stacking is a digital image processing technique which combines multiple images taken at different focus distances to give a resulting image with a greater… Read More »Focus Stacking

High-dynamic-range imaging (HDRI or HDR) is a set of techniques used in imaging and photography to reproduce a greater dynamic range of luminosity than is… Read More »HDR

In photography, a histogram is a type of chart that acts as a graphical representation of the tonal distribution in a digital image.

For ISO see Film Speed.

Mirror lock-up (MLU) is a feature employed in many Single Lens Reflex (SLR) and DSLR cameras. It allows the operator to reduce vibration-induced motion blur… Read More »Mirror Lock-Up

Shutter speed is one of several methods used to control the amount of light recorded by the camera’s digital sensor or film.

During long night sky exposures the starts appear to be moving across the sky due to the earth’s rotation. This causes what are most commonly… Read More »The 500 Rule