| | | | Working length (mm) | Channel diameter (mm) | Visibility | Elevator |
| | Side (posterior oblique)-viewing | JF260V, Olympus | 1240 | 3.7 | poor | + |
| | Forward-viewing | GIF Q260, Olympus | 1030 | 2.8 | good | − | | | DBE: EC450-BI5, FUJIFILM | 1520 | 2.8 | good | − | | | SBE: SIF Q260, Olympus | 2000 | 2.8 | good | − |
| | Anterior oblique-viewing | XK200, Olympus | 1030 | 2.8 | good | + |
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