What major advancement did the Daguerreotype process achieve over Niépce's Heliograph exposure time?

Answer

Reduced exposure time to mere minutes

Niépce's original image required exposure times measured in days, whereas Daguerre refined the process using a silver-coated copper plate, reducing the required exposure time significantly to mere minutes.

What major advancement did the Daguerreotype process achieve over Niépce's Heliograph exposure time?
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