PHILLIP SARIDARKIS is so desperate to save the memories of his two-year-old daughter's childhood that he has distributed more than 200 posters of his lost camera throughout Adelaide's western suburbs.

Saddened by the loss of all but a handful of snaps of his only child, Peta, the Hindmarsh father has been targeting major intersections with a poster bombardment.

"The photos are of her growing up, her at Christmas, holidays, as a flower girl at my cousin's wedding," Mr Saridarkis, 47, said.

The purple Panasonic Lumix disappeared from his backpack while he walked along King William Rd as part of the Adelaide City Council's Australia Day street parade.

Mr Saridarkis had not transferred most of the images from the memory card to his computer and is left with just a few of the irreplaceable snaps of Peta.

"I will pay a substantial reward and we don't need the camera back, just the memory card - that is important," he said. "The camera is worth just $89 but the photos are priceless to us.

"It was too important to just sit back ... I have to know I did everything I could (to get the images) otherwise I would just not feel right."

Mr Saridarkis has posters on Sir Donald Bradman Drive and South Rd, Tapleys Hill and Grange roads, and has also appealed on Facebook, Gumtree and YouTube.

"We are doing everything we can and the more exposure there is the better," he said.

Anybody with information can call 0412 484 009 or email sariphil@iprimus.com.au.