Download pdf - camera parts & functions; shutter speed and aperture

8/8/2019 camera parts & functions; shutter speed and aperture

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1. Camera Types2. Camera Body

3. Camera Lens4. How do they work together?

Camera Parts and Functions


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Major Camera Types

1.Rangefinder-35mm film

-fewer parts to break

down-easily transported &lightweight, quiet

-good quality images

-what you see throughthe viewfinder is notexactly what you get inthe final image


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2. Single-lens

Reflex-35mm film

-more parts to breakthan the rangefinder.

-easily transported &lightweighta bitheavier than arangefinder

-good quality images

-whatever the lens sees,the photographer sees


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Shutter Speeds

Rememberthese numbers are afraction of a second!!!

1/1000, 1/500, 1/250, 1/125, etc.

Shutter speeds control how long light passes through thelens to the film.

Shutter speeds are set in combination with the lens

openings. For example, a fast shutter speed to stop racingaction could be set to open and close as fast as 1/1000th ofa second.


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The shutter speed technically controls the amount of lightreaching the film and creatively controls whether a moving

subject is frozen or blurred.

1/8 sec 1/100 sec 1/500 sec


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1/30 sec

1/30 sec 1/30 sec

1/500 sec

slow shutter speedaction is blurrybackground is clear

fast shutter speedaction is clear(frozen)background is clear

slow shutter speedaction is clear(subject is movingtowards the camera)background is clear

slow shutter speedaction is clearbackground isblurry

camera was movedto follow thesubject: panning

panning


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focusing ring

distance scale

depth-of-field scale

(f-stop selections)

Text }}}

}aperture ring


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Aperture Sizes, Lens Openings, & -stops

The aperture controls the amount of light passingthrough the lens to the film.


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Aperture Sizes, Lens Openings, & -stops

ALSO control the depth of field

The depth of field is the area between the nearest andfarthest points from the camera that are acceptably sharp inthe focused image.


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In this example, we can see that all threesubjects are in focus for the photographerbecause at 16, this lenss depth of field(wall of focus) is from about 4 feet away toabout 13 feet away.

16

16


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2

In this example, we can see that only themiddle subject is in focus for thephotographer because at 2, the depth offield (wall of focus) is much shallower thanat 16 - now it is only about one foot thickand at about 7 feet away.


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Summary

Remember

The shutter controls the amount of light reaching thefilm whether a moving subject is frozen or blurred.

The aperture controls the amount of light reaching thefilm and the depth of field.


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SHUTTER SPEED

APERTURE

Physically/Technically controls:

Physically/Technically controls:

Creatively controls:

Creatively controls: DEPTH OF FIELD

MOVEMENT(blurry or sharpness)

(the wall of focus)

AMOUNT OF LIGHT

AMOUNT OF LIGHT(size of aperture)

(how long shutter is open)