Meiji Techno, BD-M-LED, Pole Stand with Rotatable Mirror and LED Lighting, 16" x 14" x 9"BD-M-LED is a wide surface LED Brightfield/Darkfield stand for applications that require transmitted oblique illumination or angle light is required. This is a popular stand for protein crystallography, equine or bovine embryo transfer. This specialized stand contains a reflection mirror in the base that is rotatable which allows the LED illumination to hit the sample at oblique angles. This stand is a simple and popular method for rendering unstained and transparent specimens clearly visible, small aquatic organisms, oocytes, have refractive index ranging from 1.4-1.2 which has a negligible difference from their surrounding aqueous medium. This type of specimens are ideal candidates for observation with darkfield illumination techniques. The mirror can also slide forward and back to provide maximum light angle control. There is a locking ring once a desired angle is reached.The EM Series stereoscopes can be mounted on the BD-M-LED stand for transmitted Brightfield / Darkfield LED illumination. This features a rotatable sliding mirror which also slides back and forth to direct the light at an appropriate angle. Ideal for many biological applications but works even for gemology, due to the ability to adjust the angle of illumination with the rotatable sliding mirror. With 20 mm post (Requires F focus block or any 20mm focus block.) Base Dimensions: 330mm (13') wide by 280mm (11') deep by 85mm (3.37') high.Included:Brightfield/Darkfield pole type stand94.5mm clear glass stage plateAutomatic voltage sensing powersupply (110v-220v)Wide surface stand can accomodate 3-4 petri dishesFront slope for comfortable hand placementLED rheostat intensity controlRotatable and sliding mirrorLocking ring for mirror angle placementAccepts 20mm focus blocks such as the F, FX, FC modelsCan accomodate EMZ-Zoom, EMT-Turret and EMF-Fixed stereo microscope bodies100% MADE IN JAPAN.