Adobe has just announced the release of Lightroom Beta 4. The new version is the first to include full feature convergence between the Mac and PC versions and addresses a number of usability and performance issues as well as adding more features and changes based on tester feedback.

If you’d like to give Lightroom a try you can download it from the Adobe Labs website at http://labs.adobe.com.

Today PhotoWalkthrough launches our first ever competition. ColourVision, makers of the excellent Spyder2 monitor calibration tools have offered a Spyder 2 PRO as a prize and all you have to do to win is shoot your best photo inspired by the topic, COLOUR. Head on over to the PhotoWalkthrough Colour Challenge page for details on how to enter and answers to all your questions.