SPOT 4.1 Basic and Advanced Software Manual for SPOT Insight ...

Ch. 5 – Preparing to Take a PictureInitiation of start of sequence – If you select this option,you will be asked to input the time interval between theend of an image exposure and the automatic start of thenext image exposure.Trigger of each image in sequence – If youselect this option, the time interval inputs willdisappear. You will be prompted before eachexposure to initiate the external trigger.Pulse Characteristics:• Minimum Pulse width: 500ns• Minimum Exposure: 40 µs• Delay to Exposure Start: 6.195 µs ±0.028 µs• Exposure End: Software Determined• Voltage Logical High Level: 3.3 – 5.0 volts• Voltage Logical Low Level: 0.0 - 0.5 voltb) Bulb Mode – In this mode, the exposure is initiated by the rising edge of the TTL signal. Theexposure continues until the TTL signal falls. Exposure time is therefore determined by the pulsewidth (level trigger).ExposureTriggersheretExposure completedhere, on falling edgeof trigger pulseTo use the Bulb Trigger feature in Manual Exposure mode, do the following:Select Image Setups from the dropdown menu.d) In the Manual ExposureWindow, set External TriggerMode to Bulb Trigger.Set the Gain (remember, theexternal TTL pulse controlsthe exposure, so no exposuresetting options will beavailable in the window).e) In the Exposure Window, set the Exposure Type to Manual exposure.User Guide to the SPOT Insight Camera 101