Apple today announced the release of Aperture 2.1, which introduces an open plug-in architecture that makes it easy for photographers to use specialized third party imaging software right from within Aperture. Available today as a free software update, Aperture 2.1 includes the Apple-developed plug-in, Dodge & Burn, which adds brush-based tools for dodge (lighten), burn (darken), contrast, saturation, sharpen and blur. Over the coming months, third party software developers will deliver image editing plug-ins for localized editing, filters and effects, noise analysis and reduction, fisheye lens correction and more.