an area or a spot in a drawing, painting, or photograph that is strongly illuminate or an especially significant or interesting detail or event.
The calotype process createa translucent original negative image which is its advantage to daguerreotype.
Explanation:
The calotype method produced a translucent starting negative picture from which multiple positives could be executed by a simple touch sheet. This gave it an essential advantage over the daguerreotype process, which occasioned an opaque real positive that could only be reproduced by mimicking it with a camera.