Nikon Z 8 Reference Manual page 923

Image quality
4
JPEG/HEIF basic
1 Figures are for a Nikon 660 GB MC‑CF660G Type B CFexpress memory card (as of March 2023)
with a NIKKOR Z 50mm f/1.8 S lens mounted on the camera.
2 The number of pictures that can be saved to the memory card or stored in the memory buffer
varies with the scene recorded.
3 Maximum number of exposures that can be stored in the memory buffer at ISO 100. May drop in
some situations, including when:
an optimal-compression ([m]) option is selected for [Image quality] for pictures shot in JPEG
format 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.
5 Drops when [HLG] is selected for [Tone mode] and [Large] is selected for [Image size].
Image size File size
Approx.
Large
4.0 MB
Approx.
Medium
2.7 MB
Approx.
Small
1.8 MB
923
Number of
exposures Buffer capacity
2
remaining
78,600 frames
125,000 frames Over 1000 frames
251,000 frames
Memory Card Capacity
2, 3
5