Big picture shows Diggers in new light

Their expressions emerge from the photo like never before, showing the mood in the WA-raised 11th Battalion on Egypt's Cheops Pyramid on January 10, 1915.

The battalion was a few months from its landing at Gallipoli on April 25 in the first group ashore.

Some wear cheeky grins, others seem serious or perhaps apprehensive, others laugh.

Though the "men on pyramid" photo is well known, it is now visible like never before. It has been scanned, enlarged to 10m by 6m and plastered inside the John Curtin Gallery for Curtin University's Anzac commemorations.

It has the spectacular resolution of the original but the giant size brings out new features such as the sun on bayonets, wristwatches and the papers men clutch to make them stand out.

Gallery director Chris Malcolm said the image would be launched on April 23 to be the centrepiece of an exhibition, which also features film and details about the men and battalion.

An enlarged identifying grid photo that numbers each man will be on another wall.