The final work of ABC journalist Paul Lockyer, cameraman John Bean and helicopter pilot Gary Ticehurst has been launched.

The book - Lake Eyre: A journey through the heart of the continent - was completed just days before the trio died in a helicopter crash while they were filming in South Australia's remote outback last year.

Following is a selection of images from the book and an interview with Lockyer's sons Jamie and Nick.

Clouds leave a mottled pattern on Lake Eyre in northern South Australia. Photo from the book, Lake Eyre: A journey through the heart of the continent, by Paul Lockyer and with photos by John Bean and Gary Ticehurst. ( Kim Wirth )

Dragonflies at Lake Eyre in northern South Australia. Photo from the book, Lake Eyre: A journey through the heart of the continent, by Paul Lockyer, John Bean and Gary Ticehurst. ( Angus Emmott )

Salt pans on Lake Eyre in northern South Australia. Photo from the book, Lake Eyre: A journey through the heart of the continent, by Paul Lockyer and with photos by John Bean and Gary Ticehurst. ( John Bean/Gary Ticehurst )

Pelicans at Lake Eyre in northern South Australia. Photo from the book, Lake Eyre: A journey through the heart of the continent, by Paul Lockyer and with photos by John Bean and Gary Ticehurst. ( John Bean/Gary Ticehurst )

Water fills Lake Eyre in northern South Australia. Photo from the book, Lake Eyre: A journey through the heart of the continent, by Paul Lockyer and with photos by John Bean and Gary Ticehurst. ( Kim Wirth )

ABC cameraman John Bean, ABC helicopter pilot Gary Ticehurst, and ABC journalist Paul Lockyer stand on the salt pans at Lake Eyre in South Australia in June 2010. ( ABC News )