Features:

1. Magnification: 2.5X, 3.0X and 3.5X

2. Focus distance adjustable, as convenient as wearing glasses.

3. Applicable to the persons with arm tremor.

4. Adjustable PD range: 40-66mm

Models:

ZS-2.5X-340  Working distance: 340mm  DIA of visual field: ＞110mm   Magnification: 2.5X

ZS-3.0X-340  Working distance: 340mm  DIA of visual field: ＞110mm   Magnification: 3.0X

ZS-3.5X-340  Working distance: 340mm  DIA of visual field: ＞110mm   Magnification: 3.5X