• Turning the Quick Control Dial will adjust the aperature / depth of field of the picture / video.

Here’s some notes from the YouTube Tutorials:

TUTORIAL 1

The first tutorial talks about the hardware of the camera. He talks about the

• Removing the camera lens with the lens release button to the right of thelens
• The pop up flash button above the lens release button
• The info button, showing the camera setting, and the electronic leveling meter
• Dioprate Adjustment, the little wheel beside the viewfinder that will make the viewfinder more crisp.
•  The Q button above the playback button chooses the mode of shooting. 
• 

Expsoure is measured on the LED screen, amongst other settings like drive mode, ISO settings, metering settings, and just a backlight

The AF point selection is at the top, above the meter wheel. It somehow helps you choose how what to focus on.

TUTORIAL 2 

The AV setting stands “Aperature Priority”. When you scroll on the main dial, you’ll adjust the aperature priority from low to high.