You can now share photos that are up to 960 pixels wide (up from 720 pixels) and photos will load twice as fast. Photos that you have already uploaded to Facebook will be displayed at the higher resolution too.
In addition, Facebook has made some changes to its photo viewer. It has now been streamlined with a cleaner interface as the lightbox has been changed to a white background that places more emphasis on the photo.
These changes have been made in the same week that Facebook rolled out more photo tagging controls, along with several other tools and new features. Meanwhile, photo filters may soon be added to Facebook photos.
This update to the photo-sharing feature will be rolled out to all users over the next few days.