DETAILED PARAMETERS? – Continuous Zoom: 0.7X-4.5X, Long Working Distance: 95mm-300mm/ 3.7”-11.8, Model: Jewelry Microscope Stand, Material: Hard Aluminum Alloy, Machine Objective Lens: 0.5X/165Mm, Machine Eyepiece: Wf10X/20Mm, Field of View: 5.1-33 Mm (0.2-1.3 inch), Spin Angle: Horizontal ±15°, Straight: ±15°, Main Straight: 270°. CONTINUOUS ZOOM & STEREOSCOPE SENSE? – The continuous zoom microscope lens is characterized by high-definition, large field of view, and strong stereoscopic sense. Wide-angle vision technology brings high resolution and a large field of view with easy operation. POWERFUL PERFORMANCE? – The jewelry microscope inlaid stand is made of high rigidity aluminum alloy. With compact and stable chassis, it occupies a small space to store easily. A large zoom ratio & a wide field of view make the observation clearer and brighter. USER-FRIENDLY DESIGN? – The unified headrest rest frame, as a user-friendly operating design, relieves neck fatigue. Aesthetic and practical cross-section universal joints are suitable for various heights & azimuth angles. VARIOUS APPLICATION? – An essential tool for the micro-inlay jewelry industry, it’s able to meet all needs of operating requirements. Help you zoom in on the details of the jewelry and do better inlay work. Model: Jewelry Microscope Stand. Control High Range: 60mm. Material: Hard Aluminum Alloy. Machine Objective Lens: 0. Machine Eyepiece: WF10X/20 mm. Binocular Pupil Distance: Pupil distance adjustment 54-76 mm (2.13-2.99 inch). Field of View: 5.1-33 mm (0.2-1.3 inch). Product Size: 68.58 cm x 53.34 cm (L x H)/27” x 21′. Stand weight: 6.9kg (15.2lbs). Complete weight: 8.4kg (18.52lbs). Gross weight: 8.46kg (18.65lbs).