A spokesman for the Australian Cinematographers Society, which inducted Lesnie into their Hall of Fame back in 2002, released a brief statement saying they’ve been "advised of the sudden death of Andrew." Lesnie’s family is said to make a statement, potentially later today.
Hollywood is devastated by the news. According to News.com.au, members of WETA, Jackson’s special effects company, are said to be in mourning, while some of Lesnie’s co-workers have responded on Twitter. Russell Crowe, who worked with Lesnie on his directorial debut, The Water Diviner, called Lesnie "the master of the light," while Fantastic Four star Jamie Bell, who worked with him on King Kong, called the cinematographer "a treat to work with."
Lesnie was known for his artistic sensibilities, seamlessly merging it with tech. He got his start working on low-budget shorts, music videos, documentaries and commercials, and he expanded to the children’s TV series Wonder World in 1979. He worked steadily in the years that followed, though he gained notoriety for his relationship with director George Miller. Lesnie worked with him since the ‘80s as a cameraman on Mad Max: Road Warrior, and they re-teamed for Babe and the sequel, subtitled Pig in the City.
However, his relationship with Peter Jackson led to his Oscar win. Though Jackson hasn’t yet released an official statement on Lesnie’s passing, the filmmaker said in a 2004 interview with DigitalProducer.com that he decided to hire him for The Lord of the Rings because of Babe.
I’d never worked with him or even met him before, but he’d shot the Babe films and I thought they looked amazing, the way he’d used backlight and the sun and natural light to create a very magical effect. And Babe had that larger-than-life feel about it that I wanted.
UPDATE: Jackson released an official statement on his Facebook page regarding Lesnie's passing. He wrote, in part,
Being an only child, I grew up wondering what it would be like to have a brother. It wasn’t until today, in trying to deal with the terrible news of Andrew's passing, that I came to realise how much he had become that person for me - someone I could intrinsically love and trust - which I know now means someone who is up for all the good and the bad.
In 2002, Lesnie won Best Cinematography at the Oscars for his work on The Fellowship of the Ring. Here's an example of some of his work.
He would continue his work for Jackson with all three of The Lord of the Rings films, King Kong and the Hobbit trilogy. Some of his other notable achievements include I Am Legend with Will Smith, M. Night Shyamalan’s The Last Airbender and Rise of the Planet of the Apes with his Hobbit and LOTR buddy, Andy Serkis.