Olympus E-M1 - Manual (Page 41)

41 EN
Basic operations
5
Choosing aperture and shutter speed (M manual mode)
In mode M, you choose both the aperture and the shutter speed. At a speed of BULB, the
shutter remains open while the shutter button is pressed. Set the mode dial to M.
Front dial
Lever
Rear dial
Dial
Position of the lever
1 2
r
Aperture value ISO
o
Shutter speed White balance
• Shutter speed can be set to values between 1/8000 and 60 seconds or to [BULB] or
[LIVE TIME].
# Cautions
• Exposure compensation is not available in M mode.
Choosing when the exposure ends (bulb/time photography)
Use for night landscapes and fi reworks. Shutter speeds of [BULB] and [LIVE TIME] are
available in mode M.
Bulb photography (BULB): The shutter remains open while the shutter button is pressed.
The exposure ends when the shutter button is released.
Time photography (TIME): The exposure begins when the shutter button is pressed all
the way down. To end the exposure, press the shutter button
all the way down again.
• When using BULB or TIME, screen brightness is varied automatically.
• When using [LIVE TIME], the progress of the exposure will be displayed in the monitor
during shooting. The display can also be refreshed by pressing the shutter button halfway.
• [Live BULB] (P. 94) can be used to display the image exposure during bulb photography.
# Cautions
• ISO sensitivity can be set to a value up to ISO 1600 for live bulb and live time
photography.
• To reduce camera blur during long exposures, mount the camera on a tripod and use a
remote cable (P. 133).
• The following features are not available during long exposures:
Sequential shooting/self-timer shooting/AE bracket shooting/image stabilizer/
fl ash bracketing/multiple exposure*
* An option other than [Off] is selected for [Live BULB] or [Live TIME] (P. 94).
• Even when [Noise Reduct.] is in use, noise may be noticeable in the image displayed on
the monitor during shooting.
Noise in images
While shooting at slow shutter speeds, noise may appear on screen. These phenomena
occur when the temperature rises in the image pickup device or image pickup device
internal drive circuit, causing current to be generated in those sections of the image pickup
device that are not normally exposed to light. This can also occur when shooting with a
high ISO setting in a high-temperature environment. To reduce this noise, the camera
activates the noise reduction function.
g [Noise Reduct.] (P. 93)