Because laser photoplotting is contactless, there is minimal film wear, fewer artifacts

https://www.newsbreak.com/dmr-news-321522575/4524631068041-artnet-pro-sets-the-standard-in-high-resolution-pcb-photoplotting-for-aerospace-and-advanced-electronics

Because laser photoplotting is contactless, there is minimal film wear, fewer artifacts, and reduced risk of contamination, yielding crisp features and longer tool life compared with mechanical exposure.