Description | * Type : Ocular Type External Reading System * Vertex Power Range : ± 25D Step : 0.25D Step Up to± 10D 0.50D Step Beyond ± 10D * Cylindrical Axis Scale : 0 to 180° (1° step) * Prismatic Power Range : 5 in the View field (1 step) * Target : Pinshole Corona * Eyepiece Focusing : + 3D to -5D * Diameter Of Lens Accommodated : 30 to 80mm * Tilting Angle : 30° to 90° * Light Source : AC 220V 3W LED |
---|