Sony ILCE-7S - Manual (Page 62)

3. Adjust the focus and shoot the subject.
The shutter speed is automatically adjusted to obtain proper exposure.
Note
If proper exposure cannot be obtained after setup, the shutter speed on the shooting
screen blinks. Although you can shoot as it is, resetting is recommended.
The brightness of the image on the screen may differ from the actual image being shot.
Hint
Smaller F-value (opening the aperture) narrows the range that is in focus. This allows you
to put the subject in sharp focus and blur objects in front of and beyond the subject (depth
of field becomes shallower). Larger F-value (narrowing down the aperture) widens the
range that is in focus. This allows you to shoot the depth of the scenery (depth of field
becomes deeper).
[41] How to Use Shooting Selecting a shooting mode
Manual Exposure
You can shoot with the desired exposure setting by adjusting both the shutter speed and
aperture. The shutter speed and the aperture value can be changed while recording movies.
1. Set the mode dial to M (Manual Exposure).
2. Select the desired aperture value by turning the front dial.
Select the desired shutter speed by turning the rear dial.
When [ISO] is set to other than [ISO AUTO], use MM (Metered Manual) to check the
exposure value.
Toward +: Images become brighter.
Toward - : Images become darker.
0: Appropriate exposure analyzed by the product
3. Adjust the focus and shoot the subject.
Note
When [ISO] is set to [ISO AUTO], the ISO value automatically changes to achieve the
appropriate exposure using the aperture value and shutter speed you have set. If the
aperture value and shutter speed you have set are not suitable for appropriate exposure,
the ISO value indicator will blink.