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Exposure time (shutter) and offset, Exposure time offset, Minimum exposure time – ALLIED Vision Technologies Pike F-1600 User Manual

Page 215: Exposure time offset minimum exposure time, Chapter

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Controlling image capture

PIKE Technical Manual V5.1.2

215

Exposure time (shutter) and offset

The exposure (shutter) time for continuous mode and Trigger_Mode_0 is based
on the following formula:

Shutter register value x time base + offset

The register value is the value set in the corresponding IIDC 1.31 register
(SHUTTER [81Ch]). This number is in the range between 1 and 4095.

The shutter register value is multiplied by the time base register value (see

Table 157: Time base ID

on page 335). The default value here is set to 20 μs.

A camera-specific offset is also added to this value. It is different for the camera
models:

Exposure time offset

Minimum exposure time

Camera model

Exposure time offset

Pike F-032

17 μs

Pike F-100

42 μs

Pike F-145

38 μs

Pike F-145-15fps

70 μs

Pike F-210

42 μs

Pike F-421

69 μs

Pike F-505

26 μs

Pike F-1100

128 μs

Pike F-1600

635 μs

Table 72: Camera-specific exposure time offset

Camera model

Minimum exposure time

Effective min. exp. time

= Min. exp. time + offset

Pike F-032

1 μs

1 μs + 17 μs = 18 μs

Pike F-100

1 μs

1 μs + 42 μs = 43 μs

Pike F-145

1 μs

1 μs + 38 μs = 39 μs

Pike F-145-15fps

1 μs

1 μs + 70 μs = 71 μs

Pike F-210

1 μs

1 μs + 42 μs = 43 μs

Pike F-421

1 μs

1 μs + 69 μs = 70 μs

Table 73: Camera-specific minimum exposure time

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