Secondary Slot Function

Choose the role played by the card in the secondary slot when two memory cards are inserted in the camera.

Option		Description
P	[Overflow]	The card in the secondary slot is used only when the card in the primary slot is full.
Q	[Backup]	Each picture is recorded twice, once to the card in the primary slot and again to the card in the secondary slot.
R	[RAW primary - JPEG secondary]	NEF (RAW) copies of photos taken at settings of NEF (RAW) + JPEG are recorded only to the card in the primary slot, JPEG copies only to the card in the secondary slot. Pictures taken at other image quality settings are recorded twice at the same setting, once to the card in the primary slot and again to the card in the secondary slot.

[RAW primary - JPEG secondary]

If [On] is selected for [Multiple exposure] > [Save individual images (NEF)] in the photo shooting menu, or if [On] is selected for [HDR (high dynamic range)] > [Save individual images (NEF)] in the photo shooting menu, unprocessed copies of the individual NEF (RAW) photos that make up each multiple exposure or HDR image will be recorded to both memory cards together with the JPEG composite, regardless of the option selected for image quality.

[Backup] and [RAW primary - JPEG secondary]

The shutter release is disabled when either card is full.

Viewing Dual-Format Photos

Use the [Dual-format recording PB slot] item in the playback menu to choose the slot from which dual-format photos are played back.
When viewing dual-format photos, you can view the other copy using [Jump to copy on other card] in the i menu.

Deleting Copies

When deleting pictures recorded using [Backup] or [RAW primary - JPEG secondary], you have the choice of erasing either both copies or only the copy on the card in the current slot.

Pressing O when a picture created using either of these options is selected during playback displays a confirmation message.
To delete only the copy on the card in the current slot, highlight [Selected image] and press O again. The copy on the remaining card is not deleted.
To delete both copies, highlight [Same images on w and x] and press O.