Product Description
The Optimetrics Trial Frame MTF-1 is a lightweight, precision-engineered frame designed for accurate and comfortable refraction testing. Its advanced adjustment mechanisms allow for fine-tuning to fit various face shapes and ensure accurate alignment of optical elements.
Each side of the frame can hold up to four trial lenses, allowing full control of cylindrical and prism lens combinations. The frame offers 360° lens rotation, accurate axis calibration, and wide pupil distance (PD) and nose pad adjustability for maximum patient comfort.
| PD Range |
Both eyes: 48–80 mm / Individual eye: 24–40 mm (1 mm steps) |
| Lens Capacity |
4 lenses per side (left & right) |
| Lens Frame Inner Diameter |
Φ32.5 mm |
| Lens Rotation |
360° around optical axis |
| Axis Calibration |
Left disc: 120°–0°–135°, Right disc: 45°–180°–60° (5° intervals) |
| Lens Optical Axis Accuracy |
Non-parallelism: ≤2.5°, Non-concentricity: ≤0.5 mm, Displacement: ≤0.3 mm |
| Nose Pad Adjustment |
Length: 0–14 mm, Angle: 0°–30° |
| Temple Arm Length Adjustment |
98–135 mm |
| Max Distance Between Arms |
200 mm |
| Weight |
48 g (New model) / 72 g (full hardware) |
With durable construction and fine mechanical control, the MTF-1 Trial Frame ensures precise optical alignment and patient comfort for reliable vision assessments.