piSight Configurations
Dozens of piSight configurations are available, supporting a very wide range of performance and budget requirements. All piSight units feature 20 pixels/degree (2.9 arcmin/pixel).
Popular Configurations:
| Part num | Diagonal FOV | Horizontal FOV | Vertical FOV | Binocular Overlap |
|---|---|---|---|---|
| 83-22 | 83 | 72 | 45 | 85% |
| 90-21 | 90 | 86 | 30 | 63% |
| 94-22 | 94 | 86 | 45 | 63% |
| 99-31b | 99 | 96 | 30 | 87% |
| 105-32b | 105 | 97 | 45 | 87% |
| 110-33b | 110 | 97 | 60 | 87% |
| 120-31 | 120 | 117 | 30 | 63% |
| 123-32 | 123 | 118 | 45 | 63% |
| 127-33 | 127 | 118 | 60 | 63% |
| 145-41b | 145 | 144 | 30 | 68% |
| 148-42b | 148 | 144 | 45 | 68% |
| 150-43b | 150 | 144 | 60 | 68% |
| 166-43 | 166 | 164 | 60 | 50% |
| 179-51 | 179 | 179 | 30 | 63% |
| 179-52 | 179 | 179 | 45 | 63% |
| 179-53 | 179 | 179 | 60 | 63% |
Horizontal Field of View
Wider field of view is better, but often comes at a higher cost. Consider how important far peripheral vision is important for your application. Is 90° enough? 120°? 150°? 180°?
Vertical Field of View
Taller field of view is better, but some applications prefer limiting the vertical field of view experienced by the user so that the user can look down and see physical controls (e.g. levers or buttons) that do not appear in the VR model.
Binocular Overlap
The binocular overlap is the portion of the scene that can be seen by both eyes. Larger binocular overlap enhances stereo perception. The choice of binocular overlap depends on the type of imagery that will be presented. If the user is presented with objects that appear nearby - such as at an arm's reach - greater binocular overlap is important. If most of the imagery appears as if it is far away, one might be able to achieve excellent results with lower binocular overlap.
