Manual

Controlling image capture

GUPPY Technical Manual V7.1.0

183

Example GUPPY F-033

100 x 20 µs + 109 µs = 2109 µs exposure time

The minimum adjustable exposure time set by register is 20 µs.  The real

minimum exposure time of GUPPY F-033 is then 20 µs + 109 µs = 129 µs.

Extended shutter

The exposure time for long-term integration of:

• up to 67 seconds for the CCD models

• up to 979 ms for the Guppy F-036 (CMOS model)

• up to 2.3 seconds for the Guppy F-503 (CMOS model)

can be extended via the EXTENDED_SHUTTER register.

The longest exposure time, 3FFFFFFh, corresponds to 67.11 sec.

Camera Register value Timebase

GUPPY F-033 100 20 µs

Table 66: Register value and Timebase for GUPPY F-033

0xF100020C EXTD_SHUTTER Presence_Inq [0] Indicates presence of this feature (read

only)

--- [1..5] Reserved

ExpTime [6..31] Exposure time in µs

Table 67: Extended shutter configuration

Note



Minimum shutter time for interlaced models in Format_7

Mode_1 is limited to the duration time of one field

(33/25 ms) see description of Shutter (integration) param-

eter in Table 37: Format_7 Mode_1: output parameters (inter-

laced, frame) on page 105.