Adobe yesterday announced the availability of a second beta version of its Photoshop Lightroom 3 digital photo editing and management application for Mac and Windows. The new beta, which will expire on June 30th, offers a number of new features including support for native tethered shooting on certain Nikon and Canon camera and improved import and watermarking features.

Here's a quick summary of what's new in this release:

- Improved performance throughout the application for faster importing and loading of images
- Native tethered shooting support for select Nikon and Canon DSLR cameras
- Luminance noise reduction has been added to the previous color noise reduction improvements available in the first public beta for outstanding overall high ISO quality
- Support for importing and managing video files from DSLR cameras for better overall photographic workflow control
- Improvements to the import experience in the first beta to reflect public feedback
- Improved watermarking functionality from the first beta to reflect public feedback

According to Adobe, over 350,000 photographers have downloaded the Lightroom 3 beta so far, offering key feedback to help with refinement of the application. No release date for the final version of Lightroom 3 has been announced, but the company suggests that it is moving closer to final release.

Adobe has also posted a video preview of the new features included in the second beta.