Technical data

100
The "B" setting
The "B" setting, at which the shutter remains open
for as long as the shutter release button is de-
pressed, allows exposures of any length.
The exposure meter remains turned off, however
the digital numerical display counts the expired
exposure time in seconds after the shutter is re-
leased. To preserve the batteries, the maximum
count and display is “
999999””
. After this, the display
goes out, but the shutter can nevertheless remain
open for as long as required.
Note: With the "B" function, batteries are still re-
quired to open and close the shutter. However, for
the entire duration of the exposure, the open shut-
ter does not consume any power, only a small
amount of battery power is required for the
camera control.
Meter sensitivity
At room temperature, normal humidity and an
aperture of 1.0, the measuring range is from 0.03
to 125000 cd/m
2
. For ISO 100/21° this corres-
ponds to EV-2 to 20 or f/1.0 and 4s to f/ 32 and
1/1000s (see also diagram on page 103).
Light levels below the measuring range
If manual setting at very low luminance goes
below the measuring range of the exposure
meter, the left-hand triangular LED flashes as a
warning. For the aperture priority mode, the shut-
ter speed continues to be shown. If the necessary
shutter speed falls below the slowest possible
speed of 32s, this display also flashes.
Since the meter uses the working aperture, the
LEDs may also flash when the lens is stopped
down.
The exposure meter remains on for approximately
14 seconds after finger pressure is removed from
the shutter release button, even if the light level is
below the threshold sensitivity level. If the light
level improves during this time (e.g. if the compo-
sition is changed or the diaphragm opened), the
LEDs stop flashing and come on permanently.