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PHOTOGRAPHY ▸ EXPOSURE
112
SELECTABLE SHUTTER SPEEDS
Max. selectable shutter speeds depend on the current ISO setting.
ISO range Max. Shutter Speed
125
60 min
160 – 250
30 min
320 – 500
15 m in
640 – 1000
8 min
1250 – 2000
4 min
2500 – 4000
2 min
5000 – 8000
60 s
10 000 – 16 000
30 s
20 000 – 32 000
15 s
40 000 – 200 000
8 s
NOISE REDUCTION
Image noise becomes more apparent when using higher sensitivities,
particularly on uniform dark areas. Long exposure times may cause
severe image noise. In order to reduce this annoying phenomenon,
the camera will take a second “black picture” (taken with the shutter
closed) automatically after a shooting with slow shutter speed and
high ISO value. The noise metered in this parallel image is then
digitally “subtracted” from the data for the actual image. In such
cases the message
Noise reduction in progress... will appear with a
relevant time value.
The doubling of the “exposure” time must be taken into account for
long-term exposure times. The camera must not be switched off
during that time. We recommend disabling Noise Reduction to allow
shooting multiple frames in series and to apply noise reduction later
during the post-editing stage. The images will have to be taken in
raw data format.
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