Nikon D3s Body Only D3S User's Manual - Page 63

A Memory Card Slots Slot 1 is for the main card; the card in slot 2 plays a backup or secondary role. If the default setting of Overflow is selected for Slot 2 (0 88) when two memory cards are inserted, the card in slot 2 will only be used when the card in slot 1 is full. Slot 1 s Slot 2 The card currently in use is indicated in the top control panel and information display (the illustrations at right show the displays when two cards are inserted). SHOOT CUSTOM Top control panel Information display 3 Insert the memory card. Insert the first memory card in slot 1. Slot 2 should be used only if a card is already inserted in slot 1. Insert the memory card with the rear label toward the monitor (q). When the memory card is fully inserted, the eject button will pop up (w) and the green access lamp will light briefly. Eject button Rear label Access lamp 37