The following table shows buffer capacity and the approximate number of pictures that can be stored on a 325 GB 1 card at different image qualities (Adjusting Image Quality) and sizes (Choosing an Image Size) when [FX (36 × 24)] is selected for [Choose image area]. Actual capacity varies with shooting conditions and the type of card.

Image quality

Image size

File size

Number of exposures remaining 2

Buffer capacity 2, 3

NEF (RAW), lossless compression

Approx. 55.1 MB

3600 frames

79 frames

NEF (RAW), high efficiencym

Approx. 33.0 MB

8500 frames

685 frames

NEF (RAW), high efficiency

Approx. 22.0 MB

12,100 frames

Over 1000 frames

JPEG fine 4


Approx. 24.1 MB

10,400 frames

Over 1000 frames


Approx. 14.3 MB

17,700 frames


Approx. 7.0 MB

35,400 frames

JPEG normal 4


Approx. 12.2 MB

20,600 frames

Over 1000 frames


Approx. 7.2 MB

34,400 frames


Approx. 3.6 MB

68,800 frames

JPEG basic 4


Approx. 5.3 MB

39,900 frames

Over 1000 frames


Approx. 3.4 MB

65,200 frames


Approx. 1.9 MB

123,000 frames

  1. Figures are for a ProGrade Digital COBALT 1700R 325GB memory card (as of September 2021) with a NIKKOR Z 50mm f/1.8S lens mounted on the camera.

  2. Number of pictures that can be saved to memory card or stored in memory buffer varies with scene recorded.

  3. Maximum number of exposures that can be stored in memory buffer at ISO 100. May drop in some situations, including when:

    • an optimal-compression ([m]) JPEG option is selected for [Image quality] or

    • [ON] is selected for [Auto distortion control].

  4. Figures assume a size-priority option (an option not marked with [m]) is selected for [Image quality]. Selecting an optimal-compression ([m]) option increases file size; the number of images and buffer capacity drop accordingly.