Apple is showing an updated and faster version of its professional photography tool, Aperture 1.1, at the Photography Marketing Association (PMA) trade show.

A report on MacCentral explains the updated software is a Universal application - it will run on both Intel and PowerPC Macs. It's also significantly faster than before, the report explains, twice as fast in some operations.

Images in the new version benefit from improved RAW decode algorithms, which make for better image quality.

"What we did was invite pro photographers to submit their images to Apple," said Apple senior director, market development professional applications Kirk Paulsen. "We wanted problem images so we could really fine-tune the RAW performance. Now, there is a completely new RAW pipeline in Aperture."

Dozens of additional improvements also appear in this release, including a new colour metre tool, better export tools and automatic optimisation of images.

The new version of the software is scheduled to ship in March.