Instruction manual

-16-
GLOSSARY
Absorbed Sucked into.
Aperture A small hole near the lens of a camera that controls the amount of light reaching the film.
ASA American Standards Association, a rating system for film speeds.
Beam of Light Very narrow band of light.
Blurred When something cannot be seen clearly.
Bright When something is producing or scattering a lot of light.
Brightness The amount of light being produced by or scattered by something.
Camera A device for taking photographs.
Converging Lens A lens which makes beams of light come together.
Darkroom A room where photofinishing work is done, lights are kept off to protect exposed film.
Depth of Field How far around the focus distance things appear to be reasonably in focus.
Diverging Lens A lens which makes beams of light separate.
Enlargements Larger-than-normal pictures produced from film. Usually anything larger than 4”x6”.
Exposure When light reaches film, producing an image.
Field of View What a camera (or your eyes) can see without moving.
Film A material used to store images.
Film Speed A measure of a film’s sensitivity to light.
Flash A camera feature that provides a burst of light toward the subject just before a picture is taken.
Focal Length The length between the lens and the film in a camera.
Focus To concentrate all of the light from an object into one point so that an image of the object may be produced.
in-focus When a clear image of an object is produced.
out-of-focus When a blurred image of an object is produced.
Focus Point The point where beams of light from a converging lens meet. Place the film here for the best image.
Image The pattern of light which is formed after light from something passes through a lens.
Infrared Light A type of invisible light.
ISO International Standards Organization, a rating system for film speeds.
Lens A piece (or multiple pieces mounted together) of polished glass used to bend light.
Lens Shutter The part of a camera that is opened to allow light to reach the film. Similar to the window shutters in some
houses.
Magnifying Glass A lens which is used to produce an enlarged image of something. Uses the same concepts as described here
for cameras.
Nearsighted Someone who cannot see distant objects clearly.
Photo Developing Same as photofinishing.
Photofinishing The process in which images on film are converted into pictures on special paper.
Photography Producing images on light-sensitive material.
Point and Shoot
Camera Easy to use cameras that have a fixed focus setting or automatic focus adjustment.
Scattered Spread around.
Shutter Speed How quickly the lens shutter opens and closes, allowing light to reach the film.
Silver Compounds A light-sensitive material used to make film.
Subject What you are taking a picture of.
Telephoto A close-up photograph, the same as zooming-in.
Time-Lapse
Photography Using several exposures spread over time or one continuous exposure to show how something moves.
Viewfinder The part of a camera that allows you to see what you are taking a photograph of.
Zoom A lens in which the focal length may be adjusted while keeping focus on the subject.
Zooming-in Increasing the focal length so that the subject appears larger.
Zooming-out Decreasing the focal length so that the subject appears smaller.