All the light occurring in an environment, including sunlight and artificial-light sources such as tungsten or fluorescent lights. Also known as available light.
A handheld meter that measures the light falling on your subject.
The area that a lens sees and that is included in the viewfinder or LCD screen.
A variable opening in a lens that allows light into the camera. Also called f-stop.
Describes prints and materials that, when stored properly, will last for many years without degrading.
Unnatural coloration of pixels caused by lens aberrations or interpolation of image data.
Unequal balance in a composition.
See ambient light.
An adjustable accordion-like device that goes between your camera body and lens for taking macro photographs.
To take several exposures of the same scene using different settings, typically overexposing and underexposing the image by one f-stop. In post-production, you can blend overexposed and underexposed versions of an image to achieve more detail in the highlight and shadow areas.
A cable that you can attach to your camera, with a push-button on one end. Pressing the push button trips the shutter. Using a cable release is handy when photographing scenes that require long exposure times because it minimizes camera movement.
From the Latin word for dark room. Originally a darkened room with a small opening or aperture ...