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Back in the day, the minimum exposure time needed to create a photograph was approximately eight hours.(Unsplash)

World Photography Day 2019: Most interesting facts, first ever photo and more

By HT Correspondent | Hindustan Times, Delhi
UPDATED ON AUG 19, 2019 02:12 PM IST
From taking over eight hours for an image to process to instant photos, thanks to mobiles, photography has come a long way! Here are some of the most interesting facts about it:
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