Epson R-D1s - Manual (Page 22)

22 Taking Photos
Setting the Shutter Speed Manually
You can specify the shutter speed from 1 to 1/2000 sec., or B (Bulb).
To set the shutter speed, rotate the shutter speed dial to the desired
shutter speed value.
Note:
❏ To avoid blurring, set the shutter speed faster than "1/focal length (mm)."
If using a slower shutter speed, the use of a tripod is recommended.
❏ For brighter subjects, fast moving subjects or with a higher ISO
sensitivity, a higher shutter speed is recommended.
B (Bulb) Setting
The bulb setting is used for shooting night pictures or astronomical
objects. With this setting, the shutter stays open as long as the shutter
release button is depressed.
Using a Flash
You can use an optional flash unit when shooting pictures under low
light conditions. The syncro speed of the flash is 1/125 second. Set the
shutter speed dial to 125 when using a flash.
For more information, see the documentation included with your flash.
Setting the Aperture
Rotate the lens aperture ring to the desired value.
For more information, see the documentation included with your lens.
Using the Light Meter
The camera has a built-in light meter that calculates the best shutter
speed for the amount of light available through the lens (TTL). Press
the shutter release button halfway to view the metered shutter speed
(in red) at the bottom of the viewfinder, then adjust the exposure
settings as needed.
The metered value is displayed in the range of 1 through 2000. For any
value higher than one second, 1 is displayed in the viewfinder.
Likewise, for values lower than 1/2000 second, 2000 is displayed in the
viewfinder.