Lightpainting on a tintype.

Exposing collodion wetplates is a very static way of photographing with long exposures times, this plate is exposed for 60sec, using lightpaint, trying to capture the movements of the dancers.
The idea is to portray young talents in costumes of the National Opera & Ballet Amsterdam

This is not the first time lightpainting on wetplate collodion.
Francis Frith’s assistant Francis Wenham writes in the Liverpool and Manchester Photographic Journal -5 april 1858:

“While on his Egyptian expedition with Mr. Frank Frith, they came across a piece of sculpture that was not only in a dark place, but was, as it were, round a corner from the entrance passage, in about as unmanageable a position as can well be imagined,- however, being desirous of obtaining a picture of it, Mr. Wenham was determined not to be baffled, and procuring two looking—glasses, and stationing an assistant at the entrance with one of them, he directed a mass of the sun’s rays along the passage, while receiving them upon a second mirror, he again changed the course of the rays, and being unable to illuminate the whole of the subject at once, by keeping the second mirror in constant motion, so as to paint the figures as it were with the light, a photograph was actually obtained.”