CHG_CANON wrote:
Our resident Nordic Pope prompted me to test this on my two EOS bodies over the past few days. For both a film EOS 1v and digital 5DIII that proceed and followed the original 7D release, the IS 'engine' is engaged by the assigned BFF when focusing. You'll also hear it engage when half pressing the shutter button even if the shutter release is no longer has the AF function assigned.