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269Technical Notes
Buffer Capacity
Substituting an EN-EL18c battery inserted in an optional
MB-D18 multi-power battery pack for an EN-EL15a changes the
buffer capacity. The following table shows the maximum
number of exposures (as of September 2017) that can be stored
in the buffer in release mode CH at an ISO sensitivity of ISO 100
when a 64 GB Sony QD-G64E XQD card is inserted; actual
capacity varies with the card type and shooting conditions (for
example, buffer capacity may drop at image qualities marked
with “★” or if auto distortion control is on).
❚❚ FX (36×24) Image Area
*
Image quality Image size
Power source
EN-EL15a EN-EL18c
NEF (RAW), Lossless compressed, 12-bit
Large 170 54
Medium 94 40
Small 56 35
NEF (RAW), Lossless compressed, 14-bit Large 51 29
NEF (RAW), Compressed, 12-bit Large 200 56
NEF (RAW), Compressed, 14-bit Large 74 31
NEF (RAW), Uncompressed, 12-bit Large 55 39
NEF (RAW), Uncompressed, 14-bit Large 29 24
TIFF (RGB)
Large 32 29
Medium 35 28
Small 39 31
JPEG fine
Large 200 79
Medium 200 86
Small 200 56
JPEG normal
Large 200 86
Medium 200 92
Small 200 57