● SPECIFICATIONS: Rack and pinion, movable 1.25 ABBE condenser and iris diaphragm for resolution and contrast control Spring-loaded stage clamp for exact positioning of the specimen Superior quality locked-on 10X wide-field eyepiece with calibrated pointer for measurement Binocular 45° inclined head, 360° rotation Seidentopt binocular head with diopter adjustment on the left eye tube Objectives are DIN achromatic, parcentered, parfocal, color-coded 4X, 10X, 40XR (retractable), 100XR (retractable) oil Positive stops at both ends of travel to prevent damage to delicate specimens or optics Tension adjustment eliminates stage drift LED illumination Reverse nosepiece provides more working room on the stage Limited lifetime warranty