Bresser Science TRM 301 Microscope: The TRM-301 is a trinocular biological microscope of first-class quality with 40x-1000x power. This means excellent imaging, good ergonomy, high stability and a modern attractive design. It is a laboratory microscope, which permits an intensive use, e.g. in medicine, biology, agriculture and industry area. Also, we can recommend it to the engaged hobbyist as a «microscope for a lifetime». A particularly important feature of the TRM-301 is the Köhler illumination, which is standard for scientific research and microphotography. This optimal illumination is unbeatably bright, cool (easy on the object), homogenous, reflex free and rich in contrast using the efficiency of the microscopes optics completely using the fixed field diaphragm and the height- and center-adjustable Abbe condenser (numerical aperture 1.25; with iris diaphragm). Naturally, the TRM-301 has other great features, which are typical for high-quality microscopes: lengthwise and cross moveable stage, ergonomic coaxial focusing knobs (concerning fine drive: 200 µm / full turn), continous dimmer, planachromatic objectives (4x, 10x, 40x, 100x-oil retractable), 10x wide field eyepieces (mounted in 30° inclined eyepiece tubes), adjustment of eye relief, diopter and phototube adjustment. With this equipment, the observer can make binocular obseravtions and – at the same time! – take photographs or use a PC eyepiece. Net weight total (incl. accessories) = 19.4 lbs.