
Mode Setting
When set to Mode 2
For setting the shutter speed using the trigger pulse width
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| Mode transition state | ||||||||||||
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| External input |
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| inhibition area | External trigger | |||||||||
Trigger*1 |
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| External trigger shutter operation |
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| Normal operation*3 |
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| (50 ms) |
| shutter operation | |||||||||||||||||||
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| Trigger pulse width*3 |
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| Exposure time (Te)*2 |
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| Exposure time | |||||||||||||||||||
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| (Te)*2 | |||||
Video out |
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| *5 |
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| 1 H to 2 H*4 | |||||
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1 H to 2 H*4 |
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WEN |
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| 250 H (EIA) | 250 H (EIA) |
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| 250 H (EIA) | |||||||||||||||||||||||
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| 293 H (CCIR) | 293 H (CCIR) |
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| 293 H (CCIR) |
*1 This is a signal input from outside. The trigger | *4 | A VD signal is generated after 1 H to 2 H from the | |
| input frequency must be [Trigger pulse width + 1 |
| trigger falling edge, then the image is output |
| field + 2 H frequency] or more. The operation is |
| synchronized with the VD generation. |
| not guaranteed for shorter frequencies. If invalid |
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| data is input, normal operation is resumed several | *5 | When the external trigger shutter mode changes to |
| Vs after entering the correct data. |
| the normal operation mode, one WEN signal is |
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| output. |
*2 | Exposure time (Te) |
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| Te = Trigger pulse width + 97 ∝sec (EIA) |
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| Te = Trigger pulse width + 120 ∝sec (CCIR) |
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| (The effective trigger pulse width for the external |
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| trigger shutter operation is between 2 ∝s and 1/4 s.) |
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*3 | The normal operation state is chosen when the |
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| trigger pulse width is 1/3 s or more. The trigger |
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| falling edge restores the external trigger shutter |
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| operation. In this case, the area between the falling |
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edge of a trigger pulse and the subsequent 50 ms period is an external trigger input inhibition area. There is no guarantee of operation for any triggers input in this period.
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