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cameras

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by

Momina .A.S

on 20 February 2013

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Transcript of cameras

CAMERA A CAMERA IS A T SHAPED OBJECT,IT IS MADE OF METAL OR PLASTIC CASES. IT FIXES AN OBJECT ON SENSITIVE PLATE THROUGH LIGHT. DESCRIPTION A STILL FILM CAMERA IS MADE UP OF 3 BASIC ELEMENTS. BASIC TECHNOLOGY 1:THE LENSE=THIS IS IMAGE FORMING DEVICE ON A CAMERA.THERE ARE THREE BASIC TYPES OF LENSE. PARTS AND THEIR FUNCTIONS IN A CAMERA PARTS (CONTINUED) THE LIGHT ENTERS THE CAMERA THROUGH A LENS THAT FOCUSES THE LIGHT ONTO THE SENSITIVE PLATE ( FILM, OR SENSORS IN A DIGITAL CAMERA) .THE PLATE CAPTURES THE IMAGE AND IT IS PROCESSED EITHER CHEMICALLY OR BY DOWNLOADING. HOW LIGHT WORKS IN A CAMERA HOW A CAMERA HELPS SOCIETY 1 OPTICAL ELEMENT ( THE LENS ) 2 CHEMICAL ELEMENT( THE FILM ) 3 MECHANICAL ELEMENT( CAMERA BODY ITSELF) LIGHT TECHNOLOGY NORMAL LENSE WIDE ANGLE LENSE LONG FOCUS LENSE 2:DIAPHGRAM= THIS DETRMINES THE CORRECT FILM EXPOSURE IN THE AMOUNT OF LIGHT ALLOWED TO PASS THROUGH THE LENSE. 3:SHUTTER=THIS IS SECOND FACTOR OF EXPOSURE CONTROL.THIS MECHANICAL DEVICE ACTS AS A GATE.THIS IS OF TWO KINDS. LEAF TYPE FOCAL PLANE 4:EXPOSURE CONTROL=IT MEASURE S LIGHT INTENSITY,SHUTTER SPEED ACCORDING TO FILM USED. 5:VIEW FINDER =IT DEFINES THE AREA COVERED BY WHATEVER LENSE IS IN USED ON THE CAMERA. 6:FOCUSING METHODS=CASUALS PHOTOGRAPHER CAMERS ARE FITTED WITH AUTOMATIC FOCUSING SYSTEMS. AMATEUR PHOTOGRAPHY: PEOPLE CAN PRACTISE AS A HOBBY. ADVERTISING PHOTOGRAPHY JOURNALISTIC PHOTOGRAPHY DOCUMENTORY PHOTOGRAPHY TO OBSERVE HISTORICAL EVENTS AS THEY HAPPENED PHOTOGRAPHIC EVIDENCE AS WITNESS IN COURTS WITH PHOTO ARE CAN GO BACK TO A TIME MEMONRIES .EG BIRTHDAYS ,ETC. SCIENTISTS CAMERA TECHNOLOGY IS PART OPTICAL AND PART CHEMICAL.
CAMERA UNDER WENT MANY CHANGES OVER THE HISTORY.THERE ARE MANY SCIENTISTS INVOVED IN ITS PRESENT MODEL.
IN 1794 FIRST PANORAMA WAS OPENED BY ROBERT BLAKE.
1820:JOSEPH NICEPHONE NIEPCE TOOK FIRST PERMANENT PHOTOGRAPH.
1840:WILLIAM TALBOT.
1887;CELLULOID FILM WAS INTRODUCED.
1888:KODAK BOX CAMERA WAS MASS MARKETED.
1891:THOMAS EDISON MADE MOTION PICTURES.
1948:FIRST POLARID CAMERA BY EDWIN LAND.
CAMERA TECHNOLOGY IS EVOLVING EVERY DAY TO NES HEIGHTS. BY MOMINA DIAGRAM
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