DM-220-XY Video Zoom Microscope Zoom Range of Zoom Body: 0.7-4.5X Zoom Ratio: 1: 6.5 The pre-set stops for detents are at 0.7X, 1X, 2X, 3X, 4X and 4.5X
SZ2-200 Stereo Zoom Microscope High precision zoom with detents High definition and large depth of field Diopter adjustment for different eye widths