Canon EOS 7D Instruction Manual page 141

Silent shootingN
Mode 1

The shooting operation noise is quieter than the normal shooting.
Continuous shooting is also possible. High-speed continuous
shooting will be approx. 7.0 fps.
Mode 2

When you press the shutter button completely, only one shot will be
taken. While you keep holding down the shutter button, the camera
operation will be suspended. Then when you return to the shutter
button's halfway position, the camera operation will resume. The
shooting noise is thereby minimized. Even if continuous shooting is
set, only a single shot can be taken in this mode.
Disable

If you use a TS-E lens for shifting or tilting the lens or use an
Extension Tube, be sure to set this to [Disable]. Setting it to
[Mode 1] or [Mode 2] will result in incorrect or irregular exposures.
When you press the shutter button completely, the shutter will sound
like it took two shots. However, only one shot will be taken.
If you use flash, the [Disable] operation will take effect even if you had

set it to [Mode 1] or [Mode 2].
When using a non-Canon flash unit, set it to [Disable]. (If [Mode 1] or

[Mode 2] is set, the flash will not fire.)
Metering timerN
You can change the display time of the exposure setting.
If you select [y Dust Delete Data], [6 Sensor cleaning], [7 Clear all
camera settings], or [7 Firmware Ver.], the Live View shooting will be
terminated.
z Menu Function Settings
141