CYRUS C.

Carbon Dust is a classic technique for scientific and medical illustration which was widely used  in 20th century. It is invented by Max Brodel, who was a medical illustrator from Germany. This technique shows the transition from light to dark beautifully and highlights can be easily scraped by knife. However, sadly, carbon dust is no longer popular among the world because of the morden illutration technique like three-dimensional renders and endoscopic cameras.

To try this out, we need to grind some carbon dust from carbon pencil (but not graphite) and pick it by dry brushes. Score the silhouette from a acetate plate carefully and start paint the outline of the shape by brushes. after that, you can establish the volumes of the object by blending. At the end, highlights can be created by scraping the dust off the paper.