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26 The A77 II in a Nutshell

1.2 NOTEWORTHY FEATURES IN GENERAL

1.2.1 OLYMPIC SHOOTING SPEEDS AND AN EXPANDED
BUFFER.

Normally, the fastest your camera can
shoot is about 8 pictures per second in
Continuous – High Shooting mode. But
if you want Olympic photographer level
machine-gun-like shooting, you can shoot
as fast as 12 pictures per second! (Figure
1-6.) Sony calls this feature
“Continuous Priority AE”.

“Wait – 12 24-megapixel images per
second? A lot of memory cards can’t
absorb that much data quickly!”
True. That’s why the camera has an
expanded high-speed memory buffer
inside (much larger than on the original
A77) which holds onto the pictures as
they’re slowly written to the memory
card. This means you’ll be able to shoot Figure 1-5: 20 years ago, if you
about 50 – 60 X.Fine shots and 74 STD wanted 10 frames per second
shots at this high frame rate before the you’d have to spring for this
camera pauses and waits for more room lightweight Canon F1n High
to be made. Speed Motor Drive camera at a
cost of several thousand dollars.
Surprisingly, even for the most No autofocus or autoexposure.
demanding video and fast-paced shooting Blow through a 36-exposure roll
scenarios, Sony says that an SD-card in less than 5 seconds!
(SDHC or SDXC) rated at speed UHS-1
(although UHS-3 speeds are available), or the Memory Stick XC-HG
Duo™ are all that’s needed. These cards can reduce the buffer-wait time
when rapid-fire shooting. More details on memory card flavors can be
found in Section 14.12.

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