Adobe has released updates to Photoshop Lightroom and the Photoshop Camera Raw plug-in, both available immediately as free upgrades for existing users.

The Lightroom 1.3 update provides added support for Apple Leopard Mac OS X 10.5 and includes a technology preview of the Lightroom Export SDK, available as a separate download on the Adobe Labs site.

The Lightroom 1.3 and Camera Raw 4.3 updates also include raw file support for seven additional digital cameras including the Nikon D3, Nikon D300 and Canon 1Ds Mark III.

The Lightroom Export SDK preview allows for the development of third-party plug-ins that will enable communication from the Lightroom 1.3 Export Dialog to third party tools, Web sites or devices.

The Lightroom 1.3 update and Camera Raw 4.3 plug-in add support for seven additional digital cameras including the Canon EOS 1Ds Mark III, Canon PowerShot G9, Nikon D3, Nikon D300, Olympus E-3, Olympus SP-560 UZ, and Panasonic DMC-L10. Lightroom 1.3 provides improved support for Apple Leopard Mac OS X 10.5, fixing known compatibility issues.

The Adobe Photoshop Lightroom 1.3 update is available as a free download for existing customers via the link below.