1) Internal reading system;
2) Prism compensation unit included;
3) AC / DC power supply, more convenient.
Specifications:
Eyepiece focusing: 0-±5D
Vertex power: range: 0-±25D (0-±5D, 0.125D steps / ±5D-±25D, 0.25D steps)
Cylinder axis: 0-180°, 1° steps
Prism power: 0-20Δ (with prism compensator), 1Δ steps
Accepted lens diameter: 16-86mm
Power supply: AC110/220V / DC 3V (AA battery ×2)
Specifications
|
Ranges of Measurement |
0 to ±25D |
|
Minimum |
Outer Reading:0.125D Inner Reading:0.125D graduation up 0 to ±5D and 0.25D graduations over±5D to ±25D |
|
Cylinder Axis Range |
0-180°step 1° |
|
Primatic Power Range |
0-5prism diopters,graduations with prism compensation device 0~20prism diopters, 1graduations |
|
Prism Base Angle |
0~180° |
|
Eyepiece Adjustment |
±5D |
|
Dimension of Objective Lens |
Φ16~Φ86mm |
|
Overall size |
275×120×430mm |
|
Weight |
4kg |
|
Lighting Bulb |
~220V/-3V 3W or ~110V/-3V 3W |