A larger version of a basic computer keyboard that has additional function keys which can be assigned to trigger regular actions such as printing, connecting to the internet and file saving.

A ring that is situated near the lens throat on all manual focus lenses and some autofocus models that adjusts to control the amount of light reaching the film or CCD when recording an image. Cameras [..]

The variation in tone from black to white.

A tank or tray containing temperature-controlled air or water that holds processings tanks, bottles or trays and maintains their solution temperature throughout the stages of processing.

Used to describe any continuous man made light source such as tungsten and fluorescent lighting.

Areas of a negative or slide that appear dark and don't transmit much light.

A slang term used to describe the jagged edges created by pixels.

Indicates how good binoculars are in low light. To find this divide the objective lens by the magnification and square the result. A 10x40 has a relative brightness of 16 (40/10= 4, 4x4=16). A higher [..]

A type of head of an enlarger that has a set of three colour filters (cyan/magenta/yellow) that can be adjusted to make a colour print from a negative or transparency. It can also be used to produce d [..]

The base for APS film emulsions. Its a strong material that it accepts film emulsions evenly and, with a thickness of just 90 microns its 30% thinner than the acetate base used in conventional 35mm em [..]