Changing Iso Sensitivity (Iso) - Olympus OM System OM-1 Instruction Manual

Changing ISO sensitivity
Select a value according to subject brightness. Higher values let you photograph
darker scenes but also increase image "noise" (mottling). Select [Auto] to let the
camera adjust sensitivity according to lighting conditions.
Button
Super Control Panel
# ISO sensitivity is fixed at [Auto] during movie recording when [P], [A], or [S] is selected
for [nMode] (movie exposure mode). Setting [nMode] to [M] allows other options to be
selected. g "Assigning Roles to the Front and Rear Dials (KDial Function / nDial
Function)" (P. 216)
Auto
L80, L100,
200–102400
(still photography)
200–12800
(movie recording)
# Combining values over ISO 16000 with settings that use an electronic shutter (for
example, silent mode or focus bracketing) sets the flash sync speed to 1/50 s.
# Regardless of the value selected for ISO sensitivity, the flash sync speed for photos taken
using ISO bracketing in silent mode is 1/50 s.
# When [M] is selected for [nMode] (movie exposure mode), ISO sensitivity can be
adjusted during recording using touch controls (P. 62) or by rotating the front or rear
dial.
# If [Dramatic Tone] or [Watercolor] is chosen for picture mode during still photography,
sensitivity will not exceed ISO 1600 when [Auto] is selected.
ISO button n HIj
Q n ISO
Sensitivity is adjusted automatically according to shooting conditions.
During still photography, you can choose the maximum and standard
values for ISO sensitivity. ([KISO-A Upper/Default] (P. 114))
You can change the shutter speed at which ISO sensitivity starts to
rise in P and A modes. ([KISO-A Lowest S/S] (P. 115))
# During movie recording, ISO sensitivity will be set to values of
from ISO 200 to 12800. When [M] is selected for [nMode] (movie
exposure mode), auto ISO sensitivity control can be enabled by
selecting [On] for [bISO-Auto]. You can also choose maximum
and standard values for ISO sensitivity.
g "Setting the shutter speed at which the camera automatically
raises ISO sensitivity (KISO-A Lowest S/S)" (P. 115)
Choose a value for ISO sensitivity. ISO 200 offers a good balance
between noise and dynamic range. Choose [L100] or [L80] for larger
apertures (higher f-numbers) or slower shutter speeds. [L80] is
equivalent to ISO 80, [L100] to ISO 100.
# [L80] and [L100] are available at all exposure step values.
# [L80] and [L100] reduce dynamic range.
Choose a value for ISO sensitivity. ISO 200 offers a good balance
between noise and dynamic range.
(ISO)
P A S M B
n
4
113
EN