The laser photoplotter uses laser as the light source, which has the advantages of easy focusing and energy concentration. It is very beneficial to the instant and rapid exposure of negative films. The edges of the drawn negative films are neat, with large contrast and no false light.

The exposure is of scanning type. No matter how high the density is, the exposure can be completed in the shortest time. It only takes a few minutes to draw a negative. Therefore, it has become the mainstream of today's photo plotting industry.