TF-P50 Ophthalmic Equipment Trial Frame

The TF-P50 all-metal trial frame is constructed for durability and long life, while being lightweight and comfortable 10 wear.   Features: Durable construction Lightweight and comfortable to wear Practical, screw-thread design Wide range of adjustments for a perfect fit every time   Specifications: Range of PD adjustments: Binocular PD: 48-80mm, 1mm step. Monocular PD: 24-40mm, 1mm step. Temple adjustment: 98-135mm. Dividing disc axial graduation: Left dividing disc 1200 ~ 00 ~1350 Right dividing disc 450 ~1800 ~ 600 Axial graduation increases along the lens frame axis counter clockwise, and the graduated distance is 50. Inner diameter of lens frame: F32.5mm Number of lens inserted into left or right lens frame simultaneously: 4 pieces