AmScope T690B-PL Trinocular Compound Microscope, 40X-2000X Magnification, WH10x and WH20x Super-Widefield Eyepieces, Infinity Plan Achromatic Objectives, Brightfield, Kohler Condenser, Double-Layer Mechanical Stage

The AmScope T690B-PL compound trinocular microscope has a Siedentopf binocular mount with interchangeable pairs of 10x super-widefield and 20x super-widefield eyepieces, a reverse-mounted nosepiece with four DIN infinity plan achromatic objectives, Brightfield halogen illumination, and a double-layer mechanical stage with a stage stop to protect slides and objectives from damage. The trinocular head has a vertical camera mount and a Siedentopf binocular mount with interchangeable pairs of WH10x and WH20x eyepieces, 55 to 75mm Siedentopf interpupillary adjustment, a fixed 30-degree vertical inclination to reduce eye and neck strain, and a 360-degree rotation capability to provide a more comprehensive view and enable sharing. Dioptric adjustment accommodates individual eye-strength differences. The vertical trinocular port accepts a camera with a 23mm or C-Mount adapter (camera sold separately). The mechanical tube length is 6-5/16" (160mm). The reverse-mounted revolving nosepiece has 4x, 10x, 40xS, and 100xS (oil) DIN infinity plan achromatic objectives that provide color correction, focus over the entire range of the viewing field, and a longer working distance for improved focus when auxiliary components are utilized. The 40xS objective is spring loaded to prevent slide damage when focusing. The 100xS spring-loaded oil-immersion objective uses oil between the specimen and the objective lens to provide increased resolution over a standard objective. A compound microscope is used for inspection and dissection of specimens when two-dimensional images are desired.The microscope has Brightfield (BF) illumination which allows the specimen to absorb light, resulting in a dark image on a light background. Halogen light source provides bright light in a concentrated path, and a Kohler condenser focuses and centers the light path using two iris diaphragms, providing optimum contrast and resolution. The graduated double-layer mechanical stage, with 1mm stage divisions, locks the slide into place and provides precise slide manipulation along the X- and Y-axis to allow coordinates to be recorded, enabling the viewer to return to a specific location on the slide. A stage stop prevents the stage or specimen from coming into contact with the objectives. The stage is 7.1 x 5.9 inches (180 x 150mm) and a traveling range of 3 x 2 inches (75 x 50mm). Graduated coaxial coarse and fine focus has a focusing range of 1-3/16" (30mm) and fine-focus divisions of 0.002mm (0.0000787") that enable measurements to be taken. Focus knob tension control prevents the stage from drifting out of focus. The cast-alloy enamel-coated body is durable and resistant to stains and corrosion. SpecificationsHeadCompound trinocularMagnification40X-2000XTrinocular port23mm or C-MountEyepieces (30mm)WH10x, WH20xObjectives (20mm)4X, 10x, 40xS, 100xS (oil) infinity plan achromaticStageDouble-layer mechanicalLighting configurationTransmitted (lower)CondenserKohlerDiaphragmIrisLight sourceHalogen with rheostat, 6V/20WIllumination typeBrightfieldPower85V-230V, auto-switchingMicroscopes are instruments used to enhance the resolution of an object or image. Types include compound, stereo, or digital. Compound microscopes use a compound optical system with an objective lens and an eyepiece. Stereo microscopes show object depth in a three-dimensional image. Digital microscopes are used to display an image on a monitor, rather than looking through a lens. Microscopes can have monocular (one), binocular (two), or trinocular (three) eyepieces, with varying magnification abilities. Magnification ability refers to the size of an image. Resolution, also known as resolvant power, refers to the clarity of the image. The interaction between field of view (FOV), numerical aperture (NA), and working distance (WD) determines resolution. Microscopes can control magnification through a fixed focus, or through a range of adjustments. They can also utilize LED, fluorescent, and mirror light sources to help control viewing capabilities. Microscopes are widely used in education, lab research, biology, metallurgy, engineering, chemistry, manufacturing, and in the medical, forensic science, and veterinary industries.United Scope manufactures microscopy equipment and accessories under the brand name AmScope. The company, founded in 1996, is headquartered in Irvine, CA.What's in the Box?AmScope T690B-PL microscope with double-layer mechanical stageWH10x eyepieces, 30mm, one pairWH20x eyepieces, 30mm, one pair4x DIN infinity plan achromatic objective, 20mm10x DIN infinity plan achromatic objective, 20mm40xS DIN infinity plan achromatic objective, 20mm100xS (oil) DIN infinity plan achromatic objective, 20mmImmersion oil, one bottle(3) Color filtersSpare halogen bulbSpare fuseDust coverPower cordInstructions

• Trinocular compound microscope provides high magnification for biological use and educational applications
• Trinocular viewing head with vertical camera mount and Siedentopf binocular mount with pairs of 10x super-widefield and 20x super-widefield eyepieces with 55 to 75mm interpupillary adjustment, fixed 30-degree vertical inclination to reduce eye and neck strain, and 360-degree rotation capability to provide a more comprehensive view and enable sharing
• Reverse-mounted nosepiece with 4x, 10x, 40xS (spring), and 100xS (spring, oil) DIN infinity plan achromatic objectives that provide a longer working distance for improved focus when auxiliary components are utilized
• Brightfield, halogen illumination with rheostat to control light intensity, and Kohler condenser with two iris diaphragms for precise focus, clear examination, and light control
• Double-layer mechanical stage with 1mm stage divisions and stage stop; graduated coarse and fine focus with tension control to prevent stage drift