Field of view (mm): 3.4 x 2.6 to 0.4 x 0.3 Magnification (maximum): 160 to 1350 Working distance (mm): 81 Number of view (mm): 3.4 x 2.6 to 0.4 x 0.3 Frame rate: Maximum 30fps Base dimensions (mm): 145 x 185 Effective field of view (mm): 3.4 x 2.6至0.4 x 0.3mm :L-837/L-703/L-873/L-521/L-509