How do you shut the automatic temperature level/span adjustment settings off for FLIR A40 camera. We are capturing video through firewire using FSCAP software.

To shut the automatic temperature level/span adjustment off, press the Yes button on the camera to access the menus.  Select Image and press Yes.  Then set Auto Adjust to Off.  You can use the arrows on the camera to manually set the high and low temperature span values.  

See screenshot below.

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