Custom Key - Sony ILCE-7 How To Use Manual

During auto focus:
Temporarily switches the focusing mode to manual. Adjust the focus while the AF/MF button is
being held down.
During manual focus:
Temporarily switches the focusing mode to auto while the AF/MF button is held down, and locks
the focus.
Hint
If you select [AF/MF Ctrl Toggle] in [AF/MF Button] under [Custom Key Settings], the
focusing mode remains switched even if you remove your finger from the button.
[60] Using shooting functions > Adjusting the focus
AF Illuminator (still image)
The AF illuminator supplies fill light to focus more easily on a subject in dark surroundings. The
red AF illuminator allows the product to focus easily when the shutter button is pressed halfway,
until the focus is locked.
1. MENU →
Menu item details
Auto (default setting):
Uses the AF illuminator.
Off:
Does not use the AF illuminator.
Note
Focus is achieved as long as the AF illuminator light reaches the subject, regardless of
whether light fails to reach the center of the subject.
(Camera Settings) → [ AF Illuminator] → desired setting.