OM SYSTEM OM-1 Mark II Instruction Manual page 272

The settings used to alter exposure vary with the shooting mode.
P
(program AE)
A
(aperture-priority AE)
S
(shutter-priority AE)
M
(manual)
If exposure compensation is enabled before shooting begins, the camera will vary exposure around
the selected value.
Changing the option selected for
amount.
This setting cannot be combined with flash bracketing (P.274) or focus bracketing (P.278).
C
Both aperture and shutter speed
Shutter speed
Aperture
Shutter speed (when [
ISO sensitivity (when [
[EV Step] (P.155) changes the options available for bracketing
272
ISO] is not set to [Auto])
K
ISO] is set to [Auto])
K
Recording a series of shots with varied exposure
(AE BKT)