Brightfield&Darkfield Biological Microscope BM800 series:Description:Composed the professional darkfield kits with the advanced lab biological microscope LBM800, it becomes the darkfield microscope.it is easy to change bright field obervation into the darfield observation. It is a simple procedure which can be used on live transparent specimens, specimens which normally need to be stained (and therefore killed).you can use the dark field in the research of live bacterium, as well as mounted cells and tissues. It is more useful in examining external details, such as outlines, edges, grain boundaries and surface defects than internal structure.Features: 1. Infinite corrected optical system with infinite plan objectives,2. 6V/30W lamp illumination3. Comfortable operation with updated and ergonomic design4. Professional darkfield condenser, and darkfield 100x lens with cone diaphgragm.5. more useful in examining external details, such as outlines, edges, grain boundaries and surface defects6. A digital camera can be added to the trinocular head to take photos and videos Standard Specification800B800TOptical SystemInfinite Corrected Optical System√√Viewing HeadCompensation Trinocular head inclined at30°, Interpupillary Distance 48-75mm,√ Compensation Binocular head inclined at 30°, Interpupillary Distance 48-75mm √Tiltable Binocular head inclined at 5°-35°, Interpupillary Distance 48-75mmOOTiltable Trinocular head inclined at 5°-35°, Interpupillary Distance 48-75mmOOEyepieceExtra Wide Field EWF10X/22 eyepiece√√WF20X eyepiece, WF15X eyepieceOONosepieceBackward Quintuple Nosepiece√√Backward Sextuple NosepieceOOObjectivesInfinite Plan Achromatic Objective 4X 10X 40X(S), 100X(S.oil)√√Infinite Plan Achromatic Objective 100X with Iris diaphragm for dark field √√ Infinite Plan Achromatic Objective 20x,60XOOFocusing SystemCoaxial Coarse&Fine Adjustment, Fine Division 0.001mm, Moving range:24mm√√StageDouble Layers Mechanical Stage:185X142, Moving range:75X55mm√√CondenserSwing-out Condenser NA 0.9/ 0.25√√Dark field Condenser (Oil)N.A 1.36-1.25√√CollectorHigh Brightness Kohler Illumination with Iris Diaphragm, Aspherical Collector√√IlluminationExternal Illumination, AC220V/110V, 6V/30W Halogen Lamp, Brightness Adjustable.√√Super Light 3W LED illumination, Brightness AdjustableOOOptional partsPolarization Attachment (Analyzer and polarizer)OOInfinite Plan Turret Phase contrast KitOOTemperature Controlled StageOOEpi-fluorescent AttachmentOOHigh resolution COMS Digital Camera 1.3MP, 2.0MP, 3.0MP, 5.0MP, 9.0MP with softwareOONote: √ Standard Specification, o Optional Parts Darkfield Biological Microscope LBM800D(T)Darkfield Biological microscope With Digital camera