Passage:
In 1843, English botanist Anna Atkins privately published Photographs of British Algae: Cyanotype Impressions, a work recognized as the first book illustrated with photographic images. Atkins utilized the cyanotype process developed in 1842 by astronomer Sir John Herschel, which relied on a light-sensitive solution of ferric ammonium citrate and potassium ferricyanide to yield cyan-blue monochrome prints. By placing dried specimens directly onto coated paper exposed to natural sunlight, Atkins produced contact prints without employing a camera lens. Whereas conventional botanical illustrations of the period relied on wood engravings that required manual transcription by an artisan—and were thus vulnerable to subjective distortion—Atkins' contact printing captured exact anatomical outlines. However, because cyanotypes produced negative impressions, leaving the specimen's silhouette as unprinted white paper against a Prussian blue background, the process was unable to render internal cellular details or natural chromatic gradations, thereby limiting its diagnostic utility for microscopic taxonomy.
According to the passage, Atkins' cyanotype process differed from conventional wood engraving in which of the following ways?
- It rendered precise anatomical outlines without relying on an illustrator's manual transcription.Cevap
- BIt captured internal cellular structures with greater clarity than hand-drawn engravings could achieve.
- CIt required specialized camera lenses to focus natural sunlight onto coated paper.
- DIt preserved the subtle natural color variations present in original botanical specimens.
- EIt was devised by Atkins specifically to eliminate the high commercial costs associated with traditional printing.