Fisherbrand™ Basic Track Stand Stereo Zoom Microscope

Optical System - 10X WF eyepiece - 1X to 4X objective - Continuous zoom control - Zoom ratio: 1:4 Viewing Head - Interpupillary adjustment of 52mm to 75mm - Diopter Adjustment Focusing - Coarse focus adjustment - 40mm height adjustment range on focusing mechanism - 70mm working distance Stand - 58.4cm (23 in.) of 360° reach - 43.1cm (17 in.) of vertical height adjustment - Easily move between small and large size samples - Focusing mechanism, with smooth ball-bearing rack-and-pinion - Sturdy steel construction - Counter balanced horizontal pole Illumination - No illumination Greener Choice Claims - Environmental benefits include: - Free-of a substance that causes environmental harm - Non-Toxic - Ozone-Safe or Safe for the Ozone Layer - Recyclable - Recycled Content - Renewable Energy - Renewable Materials