Now Industrial quality control can be performed for all opaque materials like minerals and metal samples with ease and efficiency. The BA310Met also performs well in Educational environments for engineering and material professions, where affordability and ease-of-use are key demands. Optical System | Color Corrected Infinity Optical System [CCIS®] | Eyepieces | N-WF 10X/20mm, with diopter adjustment | Observation Tube | Widefield binocular 30° [F.N. 20] | | Widefield trinocular 30° [F.N. 20] - light distribution 100:0/20:80 | Interpupillary Distance Nosepiece | Widefield trinocular 30° [F.N. 20] - light distribution 50:50 fixed, Erect image Reversed quintuple | Focus | Coaxial movement; 30mm stroke; Fine focus with 2µm minimum increment | Stage | 180 x 140mm surface; 75 x 50mm movement; coaxial movement | Incident light | 12V/50W Halogen illuminator with external power supply; Halogen bulb exchangeable with 3W LED (4500K,6000K) | Accessory (optional) | Polarizer, Analyzer, Camera adapter (0.5X, 0.65X, 1X) | Specimen Thickness | Max. 30mm | Objective Specification: Type Magnification N.A. W.D.(mm) Plan | 5x | 0.13 | 11.5 | 10x | 0.30 | 6.8 | 20x | 0.40 | 11.1 | 50x | 0.55 | 8.2 | 100x | 0.80 | 2 | |