Motorized zoom lens feature   1. The most popular zoom series, telecentric iptical design, with on perspective error2. High Magnification rang:0.7x-4.5x3. Large zoom  field of view: 2.444-15.714mm(based on 2/3'' CCD)4. Adjustable working distance: 35.33-325MM5. Optical performance, with high resolution, low distortion and chromatice abberation6. Compact design, light weight, user frieddly for assembly and installation7. Coaxial illumination and fine focus adjustment(3mm or 12mm|) are optional Motorized zoom lens specification Model: PMS-Z65MWD: 90+- 2MMDOF: 1.9(0.7X)/0.28(2X)/0.1(4.5X)Mount: C-MountMagnification: 0.7x-4.5x