"Fixes a phenomenon in which the set aperture moves when shooting movies in manual exposure mode using some Canon lenses (such as macro lenses)." If you've got a 5D Mark II, 1D Mark IV, or Rebel T2i handy and have been keeping its firmware fresh, that phrase should be all too familiar; all three of those shooters have received updates in the past two months to fix such an issue, and now it's time for the EOS 7D to get a fix all its own. Our darling budding filmmakers' tool is also getting a few tweaks with AF point display and selection, and the multilingual copy editors of this world can breathe a deep sigh of relief as typos in the Spanish and Thai menus have been corrected. Well, what are you waiting for? Focus your lens on Canon's website and download away.