Listen up Canon users, the mothership just issued firmware updates for its EOS 50D, Rebel XSi (450D), and Rebel XS (1000D) DSLRs. The updates provide support for the AF assist beam on Canon's Speedlight 270 EX flashgun. More importantly perhaps, is firmware version 1.0.6 that "addresses the vertical banding noise phenomenon" for owners of the 50D. By addresses we presume Canon means fixes but we won't know until we hear your feedback. Well?