Loupes on Sports Eyeglasses, 3.5X magnification, 340mm working distance. 60mm Field of view, 65mm depth of field.
 

Roboz放大镜ML-623 Roboz眼镜式放大镜 动物手术放大镜 动物解剖放大镜
When working with small objects, we try to get closer to see more detail. Bending over in an unnatural position for extended periods of time can result in eye strain and back pain that can have long-term, detrimental consequences on our overall health and well-being. Using surgical loupes quickly improves vision and corrects poor posture. 
 

Roboz放大镜ML-623 Roboz眼镜式放大镜 动物手术放大镜 动物解剖放大镜
The double-hinge design of these loupes allows fine adjustments for the perfect positioning of the optical pieces in front of the eye. The  flip-up feature allows quick switching between normal and magnified view.