The discount is available only when you purchase Lightroom 3 simultaneously with Photoshop CS5, Photoshop CS5 Extended, or a Creative Suite edition* containing Photoshop CS5 or Photoshop CS5 Extended.
The discount will be reflected in the shopping cart just prior to checkout. Pricing is available only through the Adobe Store and certain select resellers. Education, OEM, and licensing customers are not eligible. This offer is valid worldwide. Offer valid from April 10, 2011 until December 31, 2011, and is subject to change without notice.