Canon EOS 5D Mark III EOS 5D Mark III Instruction Manual - Page 106

3 Fine Adjustment of AF's Point of FocusN Adjust by Lens You can make the adjustment for each lens and register the adjustment in the camera. You can register the adjustment for up to 40 lenses. When you autofocus with a lens whose adjustment has been registered, the point of focus will always be shifted by the adjustment amount. Set the adjustment manually by adjusting, shooting, and checking the result. Repeat this until the desired adjustment is made. If you use a zoom lens, make the adjustment for the wide-angle (W) and telephoto (T) ends. 1 Select [Adjust by lens]. Turn the dial to select [Adjust by lens]. 2 Press the button. X The [Adjust by lens] screen will appear. 3 Check and change the lens information. Check the lens information. Press the button. X The screen will show the lens name and a 10digit serial number. When the serial number is displayed, select [OK] and go to step 4. If the lens' serial number cannot be confirmed, "0000000000" will be displayed. Enter the number as indicated below. See the next page about the asterisk " * " displayed in front of the lens serial number. 106