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View of the Boulevard du Temple (1838) Daguerreotype/Photography-达盖尔摄影术：sharp,crisp and reflective-process of developing: expose the metal plate that the image is fixed on for 30 minutes to light to get the image to form.-It is the direct positive print-The moving body was not able to capture at the time; The reason why there is a human was because he was stationary for long enough-由于曝光很慢加上马车是移动的，所以画面中没有马车-在摄影初期，曝光时间是有限制的

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