80NFocus LockFocus lock can be used to change the composition after focusing,making it possible to focus on a subject that will not be in a focuspoint in the final composition. It can also be used when theautofocus system is unable to focus (pg. 82).1 Focus.Position the subject in the selected focuspoint and press the shutter-releasebutton halfway to initiate focus.2 Check that the in-focus indicator(I) appears in the viewfinder.Single-servo AFFocus will lock automaticallywhen the in-focus indicatorappears, and remain lockeduntil you remove your fingerfrom the shutter-releasebutton. Focus can also be locked by pressing the AE-L/AF-Lbutton (see following page).
