HEINE Loupe, HR 3.5x, Working Distance 420mm for 311137/311138
- Magnification: 3.5x
- Working distance: 420 mm
- Crisp, High-Resolution Image
- Unique i-View Loupe Mount
- Exceptional Focal Range
- Multi-coated Achromatic Optics
** Requires Loupe mounting kit (311126) to attach to Head Frame