Akvis has released version 4.0 of its Noise Buster plug-in for Photoshop and compatible applications.

The upgraded adds the possibility to save user presets -- as well compatibility with Windows Vista, Photoshop CS3, and Intel Mac. Upgrades for registered users are free.

Noise Buster reduces both luminance and colour noise on digital images without spoiling other aspects of the photo. It makes photos look sharper and more crisp.

Akvis Noise Buster costs $49 (around £24).