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The camera obscura is a dark roomwith a small hole that shows an upside-down image on the wall. It was used for portable versions with lenses made clearer pictures. -
It was a metal covered with tar, exposed for 8 hours to make a permanent picture. It was made by Nicéphore Niepce, in France. -
It used paper negatives to make many copies from one negative. It was made by William Fox Talbot. -
It was made by Louis Daguerre. It took pictures in 15 minutes on glass plate. -
They were more efficient and less messy. Exposure times were reduced to less than a second so cameras could be held in the hand for the first time. -
It was invented by the American George Eastman. The film was on a celluloid roll. And for the first time you did not need to know anything about optics or chemistry to take a picture. -
It was invented by Eastman. It cost only 5 shillings. At last, everyone could buy a camera. -
Digital cameras were first developed for military and astronomy purposes. CCD (Charge-coupled device) silicon chips with millions of light sensitive elements are called pixels. The pixels combine to convert light into electronic data. -
Cameras in phones are easy to use and share pictures. They are very common for everyday photography.