Ricoh PENTAX K-3 Mark III Faq page 38

[Movie Recording Using the Touch Panel]
When recording a movie, you can start and stop recording and change the following setting
using the touch panel.
・ISO sensitivity, shutter speed, aperture value and exposure compensation value.
・AF point
・Screen display on/off
To perform autofocus while recording a movie, make setting in [Movie Touch AF] of the C 3
menu.
AF Point
AF Point +
Continuous AF
AF Point +
Single AF at Start
Off
Q: Does autofocus work even during movie recording?
A: The autofocus is activated with the rear AF button even during movie shooting.
*However, the AF operation sound will be recorded.
・You can select either AFC[Continuous] or AFS[Stop after AF operation] of the autofocus
AFC can be set when using a lens that has an in-lens pulse motor.
Q. Can the external microphone to be used with the K-3 Mark III?
A. Yes, it can.
When a commercially available stereo microphone is connected to the microphone terminal, audio
can be recorded with stereo.
You can reduce the possibility of recording camera operation sounds by connecting
commercially available stereo microphone to the terminal on the camera.
The following specifications are recommended for external microphone.
(The monaural microphone is not supported)
Plug Stereo mini plug （Φ3.5mm）
Format Stereo electrets condenser
Power Plug-in Power Method (operating voltage
of 2.0V or lower.)
Impedance 2.2ｋΩ
When a commercially available headphone is connected to the headphone terminal, you can shoot/play
back while listening to the headphone.
Note:
-Do not connect a microphone or device other than the recommended standard to the
microphone terminal or headphone terminal.
-Do not use an external microphone with a cable length of 3 m or longer. The camera
may malfunction.
-If you connect an external microphone and enable the wireless LAN function to shoot
movies, noise may appear in the sound.
Sets the AF point to the touched point. (Default setting)
Sets the AF point to the touched point and continues
autofocus when a compatible lens is attached to the camera.
Sets the AF point to the touched point and performs autofocus
once.
Does not use the touch panel for recording movie.
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