Depth of Field

Aperture/F-stop- A hole or opening in which light travels

Aperture Priority- is a setting on some cameras that allows the user to choose a specific aperture value while the camera selects a shutter speed to match

Ambient Light-

Artificial Light-

ASA/ISO/Film Speed- Film speed is the measure of a photographic film's sensitivity to light, determined by sensitometry and measured on various numerical scales, the most recent being the ISO system. Film speed is used in the exposure equations to find the appropriate exposure parameters. Four variables are available to the photographer to obtain the desired effect: lighting, film speed, f-number (aperture size), and shutter speed (exposure time).

Bracket-

Depth of Field-