Started his career as a still photographer. In 1991 he worked as a correspondent at the start of the Yugoslav Wars. His work as director of photography includes Amat Escalante’s “HELI” (Cannes 2013 Best Director), for which he was also awarded the Silver Frog for best cinematography at Camerimage 2013. Other credits as DP include Rebecca Cammisa’s documentary “WHICH WAY HOME" (2010 Oscar® nomination for Best Feature Documentary Film).
His work as DP in Rick Alverson's “ENTERTAINMENT" (starring Gregg Turkington, John C. Reilly and Michael Cera) premiered at Sundance 2015 and was the closing film for New Directors/New films at MoMa in New York. His credits as director and editor include ”0.56%, What happened to Mexico?" which premiered at IDFA in 2010 and received the Honorable Men on from the Jury at Documenta Madrid 2011).
In 2014 Hagerman codirected (with Jose Cohen) "H2O mx" which received Best Feature Documentary from the Mexican Film Academy the following year.
For the last nine years he has been teaching cinematography at Centro de Diseño Cine y Televisión University in Mexico City. He lives in Merida, Mexico were he founded and ran the open air cinema, LA68, which was dedicated to screening and promoting independent documentary and fiction films.