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Controlling image capture
OSCAR Technical Manual V2.4.0
112
Extended shutter
The exposure time for long-term integration of up to 67 seconds can be
extended via the advanced register: EXTENDED_SHUTTER
The longest exposure time, 3FFFFFFh, corresponds to 67.11 sec.
Register Name Field Bit Description
0xF100020C EXTD_SHUTTER Presence_Inq [0] Indicates presence of this feature (read
only)
--- [1.. 5] Reserved
ExpTime [6..31] Exposure time in µs
Table 38: Advanced register: extended shutter
Note
L
• Exposure times entered via the 81Ch register are mir-
rored in the extended register, but not vice versa.
• Longer integration times not only increase sensitivity,
but also may increase some unwanted effects, such as
noise and pixel-to-pixel non-uniformity. Depending on
the application, these effects may limit the longest
usable integration time.
• Changes in this register have immediate effect, even
when the camera is transmitting.
• Extended shutter becomes inactive after writing to a
format/mode/frame rate register.