| Description: The exposure_type attribute indicates the exposure setting on a camera. Valid values: 'Manual' - manual exposure setting, 'Auto' - autoexposure is applied by the camera, 'Test' - test exposure setting telling the camera to return a fixed-pattern test image. | 
| Namespace Id: img | Steward: img | Class Name: Exposure | Type: ASCII_Short_String_Collapsed | 
| Minimum Value: None | Maximum Value: None | Minimum Characters: 1 | Maximum Characters: 255 | 
| Unit of Measure Type: None | Default Unit Id: None | Attribute Concept: None | Conceptual Domain: SHORT_STRING | 
| Status: Active | Nillable: false | Pattern: None | 
| Permissible Value(s) | Value | Value Meaning | 
|  | Auto | Autoexposure is applied by the camera. | 
|  | Auto Last | Autoexposure using prior image as a seed. | 
|  | Manual | Manual exposure setting. | 
|  | Manual Last | Use same exposure as the prior image. | 
|  | None | No exposure requested. | 
|  | Test | Test exposure setting telling the camera to return a fixed-pattern test image. |