Union University Photo 1 Terms Test Rosemarie Doumitt

What are the three things that control depth of field?

1. The smaller the aperture the greater the depth of field 2. The shorter the focal length of the lens the greater the depth of field 3. The greater the distance from the subject, the greater the depth of field

What are the Shutter and aperture settings?

f22 f16 f11 f8 f5.6 f4 f2.8 f2 1/1000 1/500 1/125 1/60 1/30 1/15 1/8 B

What is the telephoto lens?

(200mm) provides an enlarged image

What is a zoom lens?

(20mm-220mm) variable focal length lens

What is a wide angle lens?

(28mm, 24mm, 20mm) records a wider angle view of view than a normal lens would at the same distance

What is the normal lens?

(55mm) approximates the impression of human vision

The Aperture

A light control device usually made of overlapping metal leaves, forms an adjustable hole.

The Camera Body

A light tight box that houses the various parts of the camera, protects the film from all light except that which enters through the lens when the picture is taken.

What does the shutter controls do?

Controls the amount of light by the time it remains open and it controls motion. (The faster the shutter the more it freezes motion.)

What does the aperture control?

Depth of field and light The smaller the aperture the less light hits the film. The smaller the aperture, the greater the depth of field

The Lens

Focuses the light rays from the subject and creates a reversed, upside down image on the film

The Meter

In a 35mm lens there is a reflective meter which measures the amount of light reflecting the subject and give you an exact combination of aperture and shutter speed to expose the film correctly

The Focusing Control

Moves the elements of the lens back and forth to create a sharp image

The Film

Receives the image of the object being photographed and records this image on its light sensitive body

The Viewing System

Shows the scene the picture will cover, through a lens

What is depth of field?

The measure of the area in focus from the foreground to the image to the background. (The distance between the nearest and the farthest objects that are in acceptably sharp focus.)

The Shutter

The second light control device, is a moveable protective shield that opens and closes to permit a measured amount of light to hit the film.

What are the layers in B&W Film?

The surface: A thin protective coating to prevent scratches on the emulsion layer below The Emulsion layer: The region where the image is formed-consists of 60% gelatin and 40% light sensitive crystals The film base: A firm but flexible plastic, which provides support The anti-halation coating: Prevents light from reflecting back through the emulsion to cause halos around bright parts of the picture Adhesive coating: Between the gelatin and the base and between the base and the anti-halation. This binds the layers together.