Daguerreotype
Louis Daguerre invented an early method for producing photographic images with a light-sensitive coating of silver iodide applied to copper. After processing a picture using chemicals, the coating could be used to fix the image. The daguerreotype has a clarity that is just astonishing. Despite its extreme sharpness, the primary drawback was that both earlier photographic processes were more difficult to duplicate or reproduce than Fox Talbot's calotype or talbotype.
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