Nikon D5100 Reference Manual page 64

The following table shows the approximate number of pictures that can be stored on
an 8 GB Toshiba R95 W8OMB/s UHS-I SDHC card at different image quality and size
settings.
Image quality
NEF (RAW)+ JPEG fine 3
NEF (RAW)+ JPEG normal 3
NEF (RAW)+ JPEG basic 3
NEF (RAW)
JPEG fine
JPEG normal
JPEG basic
Large
Medium
Small
Large
Medium
Small
Large
Medium
Small
Large
Medium
Small
Large
Medium
Small
Large
Medium
Small
23.9 MB
20.8 MB
18.4 MB
20.4 MB
18.6 MB
17.4 MB
18.3 MB
17.5 MB
16.9 MB
244
279
311
285
307
325
311
324
333
10
11
10
12
10
12
16.4 MB 343 16
7.1 MB
4.4 MB
2.0 MB
3.9 MB
2.2 MB
1.0 MB
1.8 MB
1.1 MB
0.5 MB
844
1400
3300
1600
2900
6200
3300
5700
I O0
I All figures are approximate. File size varies with scene recorded.
2 Maximum number of exposures that can be stored in memory buffer at ISO 100. Drops if long exposure
noise reduction (_ 154) or auto distortion control (_ 153) is on.
3 Image size applies to JPEG images only. Size of NEF (RAW) images can not be changed. File size is the
total for NEF (RAW) and JPEG images.
[] File Names
Photographs are stored as image files with names of the form "DSC_nnnn.xxx" where nnnn
is a four-digit number between 0001 and 9999 assigned automatically in ascending order by
the camera, and xxx is one of the following three letter extensions: "NEF" for NEF images,
"JPG" for JPEG images, or "MOV" for movies. The NEF and JPEG files recorded at settings of
NEF (RAW)+JPEG have the same file names but different extensions. Copies created with
image overlay (_ 181) and movie edit options (_ 111) have file names beginning with
"DSC_" ; copies created with the other options in the retouch menu have file names
beginning with "CSC" (e.g., "CSC_0001. JPG"). Images recorded with the Color space option
in the shooting menu set to Adobe RGB (_ 153) have names that begin with an underscore
(e.g., "_DSC0001 .JPG").
218