By placing a blank page over an object with detailed texture and shading over the spot on the page where the two meet, you can create a very detailed tracing of the object.
It is made using transfer paper, which is a thin pigment- and wax-coated sheet. Transfer bares a likeness to carbon paper but the former is less messy to work with.
Projectors are among the best tools for tracing pictures money can buy and can easily prove to be worth the dollars spent if you are serious about tracing art.
Through the manipulation of mirrors and light refraction, the Camera Lucida creates an optical illusion that allows the user to trace a subject simply by looking at it.