Sony DFW-X700 Manual

A SERVICE OF

next previous

18

DFW-SX900

DFW-X700

FUNCTIONS

External Trigger Shutter Operations When Frame Rate is Reduced

The trigger acceptance prohibition period continues until all of CCD image has been transferred out of the camera.

When the transfer frame rate is reduced (3.75 fps of DFW-SX900, 7.5 fps of DFW-X700), data will continue to be transferred

even after readout of image has been completed as shown in the figure below. The trigger prohibition period continues until

data transfer ends.

All trigger inputs to the camera during the “Trigger Acceptance Prohibition Period” will be ignored.

The following equation is one method of roughly calculating the acceptable trigger interval.

Trigger interval = Exposure time + Frame rate

DFW-SX900 (When set to 7.5 fps)

DFW-X700 (When set to 15 fps)

1/1,000s

Approx. 134 ms

Approx. 68 ms

1/100s

Approx. 143 ms

Approx. 77 ms

Example of Acceptable Trigger Interval

Exposure Time

Camera

Green Green

Orange

TRIGGER

Trigger Acceptance Prohibition Period

SUB

VD

SG

CCD OUT

Isochronous

Front Panel LED

Inside Camera

B

Exposure

Time

A