6EnUsing the Battery PackAttaching the Battery PackAttaching the Battery PackBefore attaching the battery pack, be sure that the camera is off and that the MB-D12 control lock(Figure A- !4) is in the L position (the illustrations show the D800).1 Remove the contact cap (Figure A- q) from the battery pack.2 The contacts for the MB-D12 are in the base of the camera, where they are protected by a con-tact cover. Remove the contact cover as shown in Figure B-q and place it in the contact coverholder on the MB-D12 (Figure B- w).3 Position the MB-D12, keeping the MB-D12 mounting screw (Figure C- w) aligned with the cam-era tripod socket (Figure C- q) and tighten the attachment wheel by rotating it in the directionshown by the LOCK arrow (Figure D). There is no need to remove the battery from the camerabefore connecting the MB-D12. At default settings, the battery inserted in the camera will beused only after the battery in the MB-D12 is exhausted. The Battery order option in the cam-era Custom Settings menu (Group d) can be used to change the order in which the batteriesare used.Be sure to place the camera contact cover in the contact cover holder and to keep the MB-D12 con-tact cap in a safe place to prevent loss.A PB-6D and PK-13 auto-extension ring are required when using PB-6 bellows focusing attachmentwith the MB-D12.Removing the Battery PackRemoving the Battery PackTo remove the MB-D12, turn the camera offand set the control lock on the MB-D12 to L,then loosen the attachment wheel and re-move the MB-D12. Be sure to replace the con-tact cover on the camera and the contact capon the MB-D12 when the battery pack is notin use.