Film Otago Southland executive director Kevin Jennings said he had known Comer, who was "extremely well-respected throughout the industry", for about 20 years.
"I know that a lot of the directors that I'd spoken to about him [said] the great thing about him was he had 'the eye'.
"He knew what they were after ... he knew what they needed from a filming perspective."
Mr Jennings said he appreciated the guidance and help Comer had given him over the past seven years with the trust. "He really was somebody I could go to when I needed [to]. He was just always there."
In a 2009 interview with Mountain Scene, Comer told of some of his more hair-raising adventures overseas during which he "seemed to avoid getting kidnapped, shot, arrested, sick or too rattled".
He was once mistaken for a terrorist while scoping a Toyota car commercial in a remote area of Peru - and found himself facing a squad of armed soldiers, guns pointed at his chest. He was let go after heated negotiations with his guide, who the soldiers recognised as an actor from a Peruvian television soap opera.
Comer is survived by his wife and daughter, Billie. His funeral will be held from 2pm tomorrow at Paradise, near Glenorchy.